Finding the Fourth Proportional to 239,417.13, 330,397.88 and 131,990.97
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Solution
The fourth proportional to 239,417.13, 330,397.88 and 131,990.97 is: 182,148.77
Step by Step Solution
- Step 1: Write the proportion equation
239,417.13 : 330,397.88 = 131,990.97 : x - Step 2: Convert to fraction form
239,417.13/330,397.88 = 131,990.97/x - Step 3: Cross multiply
239,417.13x = 330,397.88 × 131,990.97 - Step 4: Simplify right side
239,417.13x = 43,609,536,007.19 - Step 5: Solve for x
x = 43,609,536,007.19/239,417.13 - Step 6: Final answer
x = 182,148.77
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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.