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Finding the Fourth Proportional to 407,972.62, 611,940.23 and 141,753.97

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Solution

The fourth proportional to 407,972.62, 611,940.23 and 141,753.97 is: 212,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,972.62 : 611,940.23 = 141,753.97 : x
  2. Step 2: Convert to fraction form
    407,972.62/611,940.23 = 141,753.97/x
  3. Step 3: Cross multiply
    407,972.62x = 611,940.23 × 141,753.97
  4. Step 4: Simplify right side
    407,972.62x = 86,744,957,005.21
  5. Step 5: Solve for x
    x = 86,744,957,005.21/407,972.62
  6. Step 6: Final answer
    x = 212,624.46

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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.