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Finding the Fourth Proportional to 437,853.60, 656,877.60 and 201,139.20

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Solution

The fourth proportional to 437,853.60, 656,877.60 and 201,139.20 is: 301,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,853.60 : 656,877.60 = 201,139.20 : x
  2. Step 2: Convert to fraction form
    437,853.60/656,877.60 = 201,139.20/x
  3. Step 3: Cross multiply
    437,853.60x = 656,877.60 × 201,139.20
  4. Step 4: Simplify right side
    437,853.60x = 132,123,834,961.92
  5. Step 5: Solve for x
    x = 132,123,834,961.92/437,853.60
  6. Step 6: Final answer
    x = 301,753.45

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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.