I figured it out now, but can't get a grasp of how to apply in game or haven't came up with scenarios where this is making sense to me.
Pot size raise where we are risking x to win .5x( this maybe the part where I'm confusing myself)
pot : $10
x=$10
5:10 -> 1:2
10/15
2/3
=67%
2x pot
Pot $10
10:20
1:2
2/3=67%
What sizing would I make to if I make pot size raise? 
Thanks in advance
