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Finding the Third Proportional to 133,388 and 206,474

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Solution

The third proportional to 133,388 and 206,474 is: 319,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,388 : 206,474 = 206,474 : x
  2. Step 2: Convert to fraction form
    133,388/206,474 = 206,474/x
  3. Step 3: Cross multiply
    133,388x = 206,474 × 206,474
  4. Step 4: Simplify right side
    133,388x = 42,631,512,676
  5. Step 5: Solve for x
    x = 42,631,512,676/133,388
  6. Step 6: Final answer
    x = 319,605.31

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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.