Here are some examples of how to use "satisfactorily" in a sentence:
* The project was completed satisfactorily.
* The students performed satisfactorily on the exam.
* The food was prepared satisfactorily.
There isn't a direct noun equivalent for "satisfactorily." You could use satisfaction or satisfactory performance to convey a similar meaning.
For example:
* The project was completed with satisfaction.
* The students achieved satisfactory performance on the exam.
* The food was prepared to a satisfactory level.