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Finding the Third Proportional to 69,436 and 149,909

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Solution

The third proportional to 69,436 and 149,909 is: 323,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,436 : 149,909 = 149,909 : x
  2. Step 2: Convert to fraction form
    69,436/149,909 = 149,909/x
  3. Step 3: Cross multiply
    69,436x = 149,909 × 149,909
  4. Step 4: Simplify right side
    69,436x = 22,472,708,281
  5. Step 5: Solve for x
    x = 22,472,708,281/69,436
  6. Step 6: Final answer
    x = 323,646.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.