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Finding the Fourth Proportional to 437,451.84, 656,243.10 and 137,900.88

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Solution

The fourth proportional to 437,451.84, 656,243.10 and 137,900.88 is: 206,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,451.84 : 656,243.10 = 137,900.88 : x
  2. Step 2: Convert to fraction form
    437,451.84/656,243.10 = 137,900.88/x
  3. Step 3: Cross multiply
    437,451.84x = 656,243.10 × 137,900.88
  4. Step 4: Simplify right side
    437,451.84x = 90,496,500,983.93
  5. Step 5: Solve for x
    x = 90,496,500,983.93/437,451.84
  6. Step 6: Final answer
    x = 206,871.92

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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.