Solution ratio: 0.5: x=(1/4): (1/6).
解比例：0.5：x=(1/4)：(1/6)．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">0.5 * (1/6)</gadget>
<output>0.083333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">0.083333 / (1/4)</gadget>
<output>0.333332</output>

<result>0.333332</result>