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Finding the Third Proportional to 172,626 and 262,542

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Solution

The third proportional to 172,626 and 262,542 is: 399,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,626 : 262,542 = 262,542 : x
  2. Step 2: Convert to fraction form
    172,626/262,542 = 262,542/x
  3. Step 3: Cross multiply
    172,626x = 262,542 × 262,542
  4. Step 4: Simplify right side
    172,626x = 68,928,301,764
  5. Step 5: Solve for x
    x = 68,928,301,764/172,626
  6. Step 6: Final answer
    x = 399,292.70

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.