192.168.*.* is a Class C private network. 10.*.*.* is a class A private network. Basically, you are in completely different networks. Unless you get an IP address from the Class C network, you will not be able to communicate directly (ping) that machine.
If you have access to the router that handles traffic for the 192.168.*.* network, you could set it up so that any communications it receives on a particular port is forwarded to 192.168.0.200. However, this is an indirect solution, and would only work for that particular host.