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Finding the Fourth Proportional to 656,403.32, 984,605.10 and 207,159.14

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Solution

The fourth proportional to 656,403.32, 984,605.10 and 207,159.14 is: 310,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,403.32 : 984,605.10 = 207,159.14 : x
  2. Step 2: Convert to fraction form
    656,403.32/984,605.10 = 207,159.14/x
  3. Step 3: Cross multiply
    656,403.32x = 984,605.10 × 207,159.14
  4. Step 4: Simplify right side
    656,403.32x = 203,969,945,755.61
  5. Step 5: Solve for x
    x = 203,969,945,755.61/656,403.32
  6. Step 6: Final answer
    x = 310,738.75

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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.