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Finding the Third Proportional to 79,287 and 166,359

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Solution

The third proportional to 79,287 and 166,359 is: 349,052.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,287 : 166,359 = 166,359 : x
  2. Step 2: Convert to fraction form
    79,287/166,359 = 166,359/x
  3. Step 3: Cross multiply
    79,287x = 166,359 × 166,359
  4. Step 4: Simplify right side
    79,287x = 27,675,316,881
  5. Step 5: Solve for x
    x = 27,675,316,881/79,287
  6. Step 6: Final answer
    x = 349,052.39

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.