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Finding the Third Proportional to 170,959 and 395,739

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Solution

The third proportional to 170,959 and 395,739 is: 916,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,959 : 395,739 = 395,739 : x
  2. Step 2: Convert to fraction form
    170,959/395,739 = 395,739/x
  3. Step 3: Cross multiply
    170,959x = 395,739 × 395,739
  4. Step 4: Simplify right side
    170,959x = 156,609,356,121
  5. Step 5: Solve for x
    x = 156,609,356,121/170,959
  6. Step 6: Final answer
    x = 916,063.83

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.