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Finding the Third Proportional to 129,447.28 and 267,881.34

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Solution

The third proportional to 129,447.28 and 267,881.34 is: 554,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,447.28 : 267,881.34 = 267,881.34 : x
  2. Step 2: Convert to fraction form
    129,447.28/267,881.34 = 267,881.34/x
  3. Step 3: Cross multiply
    129,447.28x = 267,881.34 × 267,881.34
  4. Step 4: Simplify right side
    129,447.28x = 71,760,414,329.31
  5. Step 5: Solve for x
    x = 71,760,414,329.31/129,447.28
  6. Step 6: Final answer
    x = 554,360.15

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.