Graphic Background Color and Format Change for 50-75 images

I have about 50-75 images that need to be 225px wide X whatever height the image needs to constrain the proportions properly. In addition, the files will need to have a transparent background in a .png format plus a gray background in a .jpg format. If the image is a solid color other than white, they just need to be cleaned up to look good. The images are company logos, mostly just text or commercial graphic designs, no photos. Also, I'll need the .psd files. This job should be relatively easy for someone with the right tools and knowledge of graphic design software platforms. I'll need the images in 3 days.