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Finding the Third Proportional to 38,458 and 82,748

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Solution

The third proportional to 38,458 and 82,748 is: 178,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458 : 82,748 = 82,748 : x
  2. Step 2: Convert to fraction form
    38,458/82,748 = 82,748/x
  3. Step 3: Cross multiply
    38,458x = 82,748 × 82,748
  4. Step 4: Simplify right side
    38,458x = 6,847,231,504
  5. Step 5: Solve for x
    x = 6,847,231,504/38,458
  6. Step 6: Final answer
    x = 178,044.40

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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.