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Finding the Third Proportional to 109,338 and 236,811

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Solution

The third proportional to 109,338 and 236,811 is: 512,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,338 : 236,811 = 236,811 : x
  2. Step 2: Convert to fraction form
    109,338/236,811 = 236,811/x
  3. Step 3: Cross multiply
    109,338x = 236,811 × 236,811
  4. Step 4: Simplify right side
    109,338x = 56,079,449,721
  5. Step 5: Solve for x
    x = 56,079,449,721/109,338
  6. Step 6: Final answer
    x = 512,899.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.