Change sprite size programmatically

I have a game object and I want the player to be able to change skin (spriterendere) of the game object. There are two sprites - 200x200 (let's call t$$anonymous$$s sprite A) and 300x300 (let's call t$$anonymous$$s sprite B) pixels. I want to change the game object or sprite to appear the same size on the screen, regardless of w$$anonymous$$ch skin they choose. I have tried the following, but none of them work. I tried to set the transform.localscale of the game object to 1 and 1 (x, y), but both sprites appear difference size.

Here are what I have done so far:

 ballWidth = transform.localScale.x;
 ballHeight = transform.localScale.y;
 Debug.Log("Ball width and height: " + ballWidth + " " + ballHeight);
 if (SelectSkinButton.isSkinSelected) {
     gameObject.GetComponent<SpriteRenderer>().sprite = SelectSkinButton.currentSkin;
     Vector2 spriteSize = GetComponent<SpriteRenderer>().sprite.bounds.extents;
     gameObject.transform.localScale = new Vector2(1, 1);
     //transform.localScale = new Vector2(ballWidth, ballHeight);
     //gameObject.GetComponent<SpriteRenderer>().size = new Vector2(0.5f, 0.5f);
     //gameObject.GetComponent<SpriteRenderer>().transform.localScale = new Vector2(0.5f, 0.5f);
             
     //gameObject.transform.localScale = new Vector2(spriteSize.x, spriteSize.y);
     GetComponent<CircleCollider2D>().radius = spriteSize.x;
     Debug.Log("Sprite width and height: " + spriteSize.x + " " + spriteSize.y);
 }

Any help is greatly appreciated.