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Finding the Third Proportional to 133,066 and 206,432

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Solution

The third proportional to 133,066 and 206,432 is: 320,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066 : 206,432 = 206,432 : x
  2. Step 2: Convert to fraction form
    133,066/206,432 = 206,432/x
  3. Step 3: Cross multiply
    133,066x = 206,432 × 206,432
  4. Step 4: Simplify right side
    133,066x = 42,614,170,624
  5. Step 5: Solve for x
    x = 42,614,170,624/133,066
  6. Step 6: Final answer
    x = 320,248.38

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.