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Finding the Third Proportional to 269,862 and 396,045

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Solution

The third proportional to 269,862 and 396,045 is: 581,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,862 : 396,045 = 396,045 : x
  2. Step 2: Convert to fraction form
    269,862/396,045 = 396,045/x
  3. Step 3: Cross multiply
    269,862x = 396,045 × 396,045
  4. Step 4: Simplify right side
    269,862x = 156,851,642,025
  5. Step 5: Solve for x
    x = 156,851,642,025/269,862
  6. Step 6: Final answer
    x = 581,229.08

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.