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Finding the Third Proportional to 217,626.75 and 479,387.25

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Solution

The third proportional to 217,626.75 and 479,387.25 is: 1,055,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,626.75 : 479,387.25 = 479,387.25 : x
  2. Step 2: Convert to fraction form
    217,626.75/479,387.25 = 479,387.25/x
  3. Step 3: Cross multiply
    217,626.75x = 479,387.25 × 479,387.25
  4. Step 4: Simplify right side
    217,626.75x = 229,812,135,462.56
  5. Step 5: Solve for x
    x = 229,812,135,462.56/217,626.75
  6. Step 6: Final answer
    x = 1,055,992.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.