4. (6 points) The sum of the largest natural number less than 100 and the smallest natural number greater than 300, is the $\qquad$ times of the largest natural number not greater than 200.



保留了原文的格式和换行，翻译结果如上。注意，原文中的 $\qquad$ 用于表示空格或留白，翻译时也保持不变。
【Analysis】This question requires finding the largest natural number less than 100, which is 99, the smallest natural number greater than 300, which is 301, and the largest natural number not greater than 200 (i.e., less than or equal to 200), which is 200. Therefore, this problem can be seen as: “What multiple of 200 is the sum of 99 and 301?”

【Solution】Solution: $(99+301) \div 200$,
$$
\begin{array}{l}
=400 \div 200, \\
=2 ;
\end{array}
$$

Answer: It is 2 times the largest natural number not greater than 200.
Therefore, the answer is: 2.