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Finding the Fourth Proportional to 437,542.60, 656,386.80 and 171,311.80

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Solution

The fourth proportional to 437,542.60, 656,386.80 and 171,311.80 is: 256,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,542.60 : 656,386.80 = 171,311.80 : x
  2. Step 2: Convert to fraction form
    437,542.60/656,386.80 = 171,311.80/x
  3. Step 3: Cross multiply
    437,542.60x = 656,386.80 × 171,311.80
  4. Step 4: Simplify right side
    437,542.60x = 112,446,804,204.24
  5. Step 5: Solve for x
    x = 112,446,804,204.24/437,542.60
  6. Step 6: Final answer
    x = 256,996.24

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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.