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Finding the Third Proportional to 217,256 and 454,372

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Solution

The third proportional to 217,256 and 454,372 is: 950,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,256 : 454,372 = 454,372 : x
  2. Step 2: Convert to fraction form
    217,256/454,372 = 454,372/x
  3. Step 3: Cross multiply
    217,256x = 454,372 × 454,372
  4. Step 4: Simplify right side
    217,256x = 206,453,914,384
  5. Step 5: Solve for x
    x = 206,453,914,384/217,256
  6. Step 6: Final answer
    x = 950,279.46

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.