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Finding the Fourth Proportional to 431,252.52, 647,003.50 and 178,486.28

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Solution

The fourth proportional to 431,252.52, 647,003.50 and 178,486.28 is: 267,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,252.52 : 647,003.50 = 178,486.28 : x
  2. Step 2: Convert to fraction form
    431,252.52/647,003.50 = 178,486.28/x
  3. Step 3: Cross multiply
    431,252.52x = 647,003.50 × 178,486.28
  4. Step 4: Simplify right side
    431,252.52x = 115,481,247,861.98
  5. Step 5: Solve for x
    x = 115,481,247,861.98/431,252.52
  6. Step 6: Final answer
    x = 267,781.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.