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Finding the Third Proportional to 133,072 and 206,616

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Solution

The third proportional to 133,072 and 206,616 is: 320,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072 : 206,616 = 206,616 : x
  2. Step 2: Convert to fraction form
    133,072/206,616 = 206,616/x
  3. Step 3: Cross multiply
    133,072x = 206,616 × 206,616
  4. Step 4: Simplify right side
    133,072x = 42,690,171,456
  5. Step 5: Solve for x
    x = 42,690,171,456/133,072
  6. Step 6: Final answer
    x = 320,805.06

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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.