Limit Android Screen Aspect Ratio

Hello,

I am soon to finish my first App for the Android platform "Portrait", through much trial and error I was able to finally get the Game to look good some common aspect ratios:

9:16 10:16 3:5

Now the Ratio 3:5 took enough time and effort from me to get it working so I decided to not support this specific aspect ratio, how can I achieve that so it wont appear on these devices on the Playstore?

Thank you