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Finding the Fourth Proportional to 138,259.72, 207,217 and 59,282.32

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Solution

The fourth proportional to 138,259.72, 207,217 and 59,282.32 is: 88,849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,259.72 : 207,217 = 59,282.32 : x
  2. Step 2: Convert to fraction form
    138,259.72/207,217 = 59,282.32/x
  3. Step 3: Cross multiply
    138,259.72x = 207,217 × 59,282.32
  4. Step 4: Simplify right side
    138,259.72x = 12,284,304,503.44
  5. Step 5: Solve for x
    x = 12,284,304,503.44/138,259.72
  6. Step 6: Final answer
    x = 88,849.48

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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.