I want some elements to scale in

I have a component that has some lines in it. The lines are spaced out with a specific ratio. The idea is that I can use these lines and scale the component while keeping the ratio between the lines the same when I scale the component up or down. I can’t seem to get my head around this. For context it is to be used in a graph.

 

I have tried farming the lines, I have used the scale property, the Left+Right property and even the Center property and none of the above worked.

I have tried to use boxes as spacers between the lines. I can get the boxes to scale correctly, however the lines will not follow the boxes:
 

Thanks for any input - it will be valued very much!