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Finding the Third Proportional to 38,858 and 83,379

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Solution

The third proportional to 38,858 and 83,379 is: 178,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,858 : 83,379 = 83,379 : x
  2. Step 2: Convert to fraction form
    38,858/83,379 = 83,379/x
  3. Step 3: Cross multiply
    38,858x = 83,379 × 83,379
  4. Step 4: Simplify right side
    38,858x = 6,952,057,641
  5. Step 5: Solve for x
    x = 6,952,057,641/38,858
  6. Step 6: Final answer
    x = 178,909.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.