Hey there!
Let's set up a proportion to figure this out.
[tex]\frac{x}{y} =\frac{4}{180} =\frac{8}{360} =\frac{12}{y}[/tex]
As we can see, 180 is being added each time, on the bottom. If we continue with the pattern, we get that your final blank will be 540.
I hope this helps! Have a great day!
