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Finding the Fourth Proportional to 394,472.70, 591,709.05 and 141,874.20

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Solution

The fourth proportional to 394,472.70, 591,709.05 and 141,874.20 is: 212,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,472.70 : 591,709.05 = 141,874.20 : x
  2. Step 2: Convert to fraction form
    394,472.70/591,709.05 = 141,874.20/x
  3. Step 3: Cross multiply
    394,472.70x = 591,709.05 × 141,874.20
  4. Step 4: Simplify right side
    394,472.70x = 83,948,248,101.51
  5. Step 5: Solve for x
    x = 83,948,248,101.51/394,472.70
  6. Step 6: Final answer
    x = 212,811.30

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Similar ratio
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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.