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Finding the Third Proportional to 38,389 and 82,610

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Solution

The third proportional to 38,389 and 82,610 is: 177,769.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389 : 82,610 = 82,610 : x
  2. Step 2: Convert to fraction form
    38,389/82,610 = 82,610/x
  3. Step 3: Cross multiply
    38,389x = 82,610 × 82,610
  4. Step 4: Simplify right side
    38,389x = 6,824,412,100
  5. Step 5: Solve for x
    x = 6,824,412,100/38,389
  6. Step 6: Final answer
    x = 177,769.99

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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.