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Finding the Fourth Proportional to 206,634.60, 309,693.60 and 88,167.60

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Solution

The fourth proportional to 206,634.60, 309,693.60 and 88,167.60 is: 132,141.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,634.60 : 309,693.60 = 88,167.60 : x
  2. Step 2: Convert to fraction form
    206,634.60/309,693.60 = 88,167.60/x
  3. Step 3: Cross multiply
    206,634.60x = 309,693.60 × 88,167.60
  4. Step 4: Simplify right side
    206,634.60x = 27,304,941,447.36
  5. Step 5: Solve for x
    x = 27,304,941,447.36/206,634.60
  6. Step 6: Final answer
    x = 132,141.19

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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.