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Finding the Third Proportional to 127,744 and 268,717

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Solution

The third proportional to 127,744 and 268,717 is: 565,261.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,744 : 268,717 = 268,717 : x
  2. Step 2: Convert to fraction form
    127,744/268,717 = 268,717/x
  3. Step 3: Cross multiply
    127,744x = 268,717 × 268,717
  4. Step 4: Simplify right side
    127,744x = 72,208,826,089
  5. Step 5: Solve for x
    x = 72,208,826,089/127,744
  6. Step 6: Final answer
    x = 565,261.98

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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.