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Finding the Fourth Proportional to 437,624.10, 656,436.15 and 157,169.70

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Solution

The fourth proportional to 437,624.10, 656,436.15 and 157,169.70 is: 235,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,624.10 : 656,436.15 = 157,169.70 : x
  2. Step 2: Convert to fraction form
    437,624.10/656,436.15 = 157,169.70/x
  3. Step 3: Cross multiply
    437,624.10x = 656,436.15 × 157,169.70
  4. Step 4: Simplify right side
    437,624.10x = 103,171,872,764.66
  5. Step 5: Solve for x
    x = 103,171,872,764.66/437,624.10
  6. Step 6: Final answer
    x = 235,754.55

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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.