How to Keep 3d game object like(Cube) in place of RawImage??

Hi guyz !
I am wondering to keep my 3d gameobject in place of rawimage ,image (UI)
for example i have a canvas in that i have a rawimage at vector3(0,0,0) and other at Vector3(-240,320) so i want my 3d cube to place at that position…

Thanks in advance.

I mean how to position 3d game object relative to rawImage in UI.