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Finding the Third Proportional to 133,698.75 and 291,387

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Solution

The third proportional to 133,698.75 and 291,387 is: 635,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,698.75 : 291,387 = 291,387 : x
  2. Step 2: Convert to fraction form
    133,698.75/291,387 = 291,387/x
  3. Step 3: Cross multiply
    133,698.75x = 291,387 × 291,387
  4. Step 4: Simplify right side
    133,698.75x = 84,906,383,769
  5. Step 5: Solve for x
    x = 84,906,383,769/133,698.75
  6. Step 6: Final answer
    x = 635,057.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.