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Finding the Third Proportional to 127,758 and 268,755

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Solution

The third proportional to 127,758 and 268,755 is: 565,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,758 : 268,755 = 268,755 : x
  2. Step 2: Convert to fraction form
    127,758/268,755 = 268,755/x
  3. Step 3: Cross multiply
    127,758x = 268,755 × 268,755
  4. Step 4: Simplify right side
    127,758x = 72,229,250,025
  5. Step 5: Solve for x
    x = 72,229,250,025/127,758
  6. Step 6: Final answer
    x = 565,359.90

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.