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Finding the Fourth Proportional to 437,729.27, 656,765.21 and 171,443.79

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Solution

The fourth proportional to 437,729.27, 656,765.21 and 171,443.79 is: 257,232.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,729.27 : 656,765.21 = 171,443.79 : x
  2. Step 2: Convert to fraction form
    437,729.27/656,765.21 = 171,443.79/x
  3. Step 3: Cross multiply
    437,729.27x = 656,765.21 × 171,443.79
  4. Step 4: Simplify right side
    437,729.27x = 112,598,317,171.16
  5. Step 5: Solve for x
    x = 112,598,317,171.16/437,729.27
  6. Step 6: Final answer
    x = 257,232.78

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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.