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Finding the Third Proportional to 200,718 and 275,229

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Solution

The third proportional to 200,718 and 275,229 is: 377,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,718 : 275,229 = 275,229 : x
  2. Step 2: Convert to fraction form
    200,718/275,229 = 275,229/x
  3. Step 3: Cross multiply
    200,718x = 275,229 × 275,229
  4. Step 4: Simplify right side
    200,718x = 75,751,002,441
  5. Step 5: Solve for x
    x = 75,751,002,441/200,718
  6. Step 6: Final answer
    x = 377,400.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.