Finding the Fourth Proportional to 392,142.13, 541,134.14 and 220,044.06
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Solution
The fourth proportional to 392,142.13, 541,134.14 and 220,044.06 is: 303,648.46
Step by Step Solution
- Step 1: Write the proportion equation
392,142.13 : 541,134.14 = 220,044.06 : x - Step 2: Convert to fraction form
392,142.13/541,134.14 = 220,044.06/x - Step 3: Cross multiply
392,142.13x = 541,134.14 × 220,044.06 - Step 4: Simplify right side
392,142.13x = 119,073,352,069.99 - Step 5: Solve for x
x = 119,073,352,069.99/392,142.13 - Step 6: Final answer
x = 303,648.46
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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.