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Finding the Fourth Proportional to 437,438.96, 656,096.15 and 137,880.61

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Solution

The fourth proportional to 437,438.96, 656,096.15 and 137,880.61 is: 206,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,438.96 : 656,096.15 = 137,880.61 : x
  2. Step 2: Convert to fraction form
    437,438.96/656,096.15 = 137,880.61/x
  3. Step 3: Cross multiply
    437,438.96x = 656,096.15 × 137,880.61
  4. Step 4: Simplify right side
    437,438.96x = 90,462,938,545.47
  5. Step 5: Solve for x
    x = 90,462,938,545.47/437,438.96
  6. Step 6: Final answer
    x = 206,801.28

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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.