Nevada is about 3.3 times smaller than Tanzania.

Tanzania is approximately 947,300 sq km, while Nevada is approximately 284,448 sq km, making Nevada 30.03% the size of Tanzania. Meanwhile, the population of Tanzania is ~63.9 million people (61.2 million fewer people live in Nevada).
Tip: This to-scale comparison of Tanzania vs. Nevada uses the Mercator projection, which distorts the size of regions near the poles.