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Finding the Fourth Proportional to 542,414.80, 813,622.20 and 187,310.80

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Solution

The fourth proportional to 542,414.80, 813,622.20 and 187,310.80 is: 280,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,414.80 : 813,622.20 = 187,310.80 : x
  2. Step 2: Convert to fraction form
    542,414.80/813,622.20 = 187,310.80/x
  3. Step 3: Cross multiply
    542,414.80x = 813,622.20 × 187,310.80
  4. Step 4: Simplify right side
    542,414.80x = 152,400,225,179.76
  5. Step 5: Solve for x
    x = 152,400,225,179.76/542,414.80
  6. Step 6: Final answer
    x = 280,966.20

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Similar ratio
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1.5x scale

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.