Finding the Fourth Proportional to 327,874.97, 491,878.76 and 138,335.81
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Solution
The fourth proportional to 327,874.97, 491,878.76 and 138,335.81 is: 207,531.69
Step by Step Solution
- Step 1: Write the proportion equation
327,874.97 : 491,878.76 = 138,335.81 : x - Step 2: Convert to fraction form
327,874.97/491,878.76 = 138,335.81/x - Step 3: Cross multiply
327,874.97x = 491,878.76 × 138,335.81 - Step 4: Simplify right side
327,874.97x = 68,044,447,080.28 - Step 5: Solve for x
x = 68,044,447,080.28/327,874.97 - Step 6: Final answer
x = 207,531.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.