Tanzania is about 3.3 times bigger than Nevada.

Nevada is approximately 284,448 sq km, while Tanzania is approximately 947,300 sq km, making Tanzania 233% larger than Nevada. Meanwhile, the population of Nevada is ~2.7 million people (61.2 million more people live in Tanzania).
Tip: This to-scale comparison of Nevada vs. Tanzania uses the Mercator projection, which distorts the size of regions near the poles.