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Finding the Third Proportional to 40,396 and 82,804

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Solution

The third proportional to 40,396 and 82,804 is: 169,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,396 : 82,804 = 82,804 : x
  2. Step 2: Convert to fraction form
    40,396/82,804 = 82,804/x
  3. Step 3: Cross multiply
    40,396x = 82,804 × 82,804
  4. Step 4: Simplify right side
    40,396x = 6,856,502,416
  5. Step 5: Solve for x
    x = 6,856,502,416/40,396
  6. Step 6: Final answer
    x = 169,732.21

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.