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Finding the Fourth Proportional to 502,660.64, 754,045.92 and 218,155.61

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Solution

The fourth proportional to 502,660.64, 754,045.92 and 218,155.61 is: 327,257.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,660.64 : 754,045.92 = 218,155.61 : x
  2. Step 2: Convert to fraction form
    502,660.64/754,045.92 = 218,155.61/x
  3. Step 3: Cross multiply
    502,660.64x = 754,045.92 × 218,155.61
  4. Step 4: Simplify right side
    502,660.64x = 164,499,343,875.38
  5. Step 5: Solve for x
    x = 164,499,343,875.38/502,660.64
  6. Step 6: Final answer
    x = 327,257.26

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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.