Tanzania is about 4.8 times bigger than Nebraska.

Nebraska is approximately 199,099 sq km, while Tanzania is approximately 947,300 sq km, making Tanzania 376% larger than Nebraska. Meanwhile, the population of Nebraska is ~1.8 million people (62.0 million more people live in Tanzania).
Tip: This to-scale comparison of Nebraska vs. Tanzania uses the Mercator projection, which distorts the size of regions near the poles.