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Finding the Fourth Proportional to 542,537.20, 813,882.60 and 168,521.20

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Solution

The fourth proportional to 542,537.20, 813,882.60 and 168,521.20 is: 252,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,537.20 : 813,882.60 = 168,521.20 : x
  2. Step 2: Convert to fraction form
    542,537.20/813,882.60 = 168,521.20/x
  3. Step 3: Cross multiply
    542,537.20x = 813,882.60 × 168,521.20
  4. Step 4: Simplify right side
    542,537.20x = 137,156,472,411.12
  5. Step 5: Solve for x
    x = 137,156,472,411.12/542,537.20
  6. Step 6: Final answer
    x = 252,805.66

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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.