Finding the Fourth Proportional to 186,698.19, 257,668.56 and 118,721.91
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Solution
The fourth proportional to 186,698.19, 257,668.56 and 118,721.91 is: 163,852.17
Step by Step Solution
- Step 1: Write the proportion equation
186,698.19 : 257,668.56 = 118,721.91 : x - Step 2: Convert to fraction form
186,698.19/257,668.56 = 118,721.91/x - Step 3: Cross multiply
186,698.19x = 257,668.56 × 118,721.91 - Step 4: Simplify right side
186,698.19x = 30,590,903,590.15 - Step 5: Solve for x
x = 30,590,903,590.15/186,698.19 - Step 6: Final answer
x = 163,852.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.