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Finding the Third Proportional to 211,892 and 457,393

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Solution

The third proportional to 211,892 and 457,393 is: 987,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,892 : 457,393 = 457,393 : x
  2. Step 2: Convert to fraction form
    211,892/457,393 = 457,393/x
  3. Step 3: Cross multiply
    211,892x = 457,393 × 457,393
  4. Step 4: Simplify right side
    211,892x = 209,208,356,449
  5. Step 5: Solve for x
    x = 209,208,356,449/211,892
  6. Step 6: Final answer
    x = 987,334.85

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.