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Finding the Third Proportional to 129,214 and 274,080

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Solution

The third proportional to 129,214 and 274,080 is: 581,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,214 : 274,080 = 274,080 : x
  2. Step 2: Convert to fraction form
    129,214/274,080 = 274,080/x
  3. Step 3: Cross multiply
    129,214x = 274,080 × 274,080
  4. Step 4: Simplify right side
    129,214x = 75,119,846,400
  5. Step 5: Solve for x
    x = 75,119,846,400/129,214
  6. Step 6: Final answer
    x = 581,359.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.