Dad has a lot of money. If he buys electric fans with a current price of 150 yuan each, he can buy exactly 4 sets. If he wants to buy a rice cooker with an original price of 200 yuan, how many can he buy? (answer with ratio)
爸爸有一笔钱，如果买现价每台150元的电扇，正好买4台，如果想买原价200元一台的电饭煲，能买多少台？(用比例解答)
<gadget id="calculator">150 * 4</gadget>
<output>600</output>

<gadget id="calculator">600 / 200</gadget>
<output>3</output>

<result>3</result>