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Finding the Third Proportional to 83,211 and 179,543

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Solution

The third proportional to 83,211 and 179,543 is: 387,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,211 : 179,543 = 179,543 : x
  2. Step 2: Convert to fraction form
    83,211/179,543 = 179,543/x
  3. Step 3: Cross multiply
    83,211x = 179,543 × 179,543
  4. Step 4: Simplify right side
    83,211x = 32,235,688,849
  5. Step 5: Solve for x
    x = 32,235,688,849/83,211
  6. Step 6: Final answer
    x = 387,396.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.