A cylindrical container and a conical container have the same bottom and height. It is known that the conical container can hold up to 150 milliliters of water. How many milliliters of water can this cylindrical container hold at most?
一个圆柱和一个圆锥容器，里面量等底等高，已知圆锥容器最多能装水150毫升，这个圆柱容器最多能装水多少毫升．
<gadget id="calculator">150 * 3</gadget>
<output>450</output>

<result>450</result>