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Finding the Third Proportional to 203,949 and 479,980

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Solution

The third proportional to 203,949 and 479,980 is: 1,129,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,949 : 479,980 = 479,980 : x
  2. Step 2: Convert to fraction form
    203,949/479,980 = 479,980/x
  3. Step 3: Cross multiply
    203,949x = 479,980 × 479,980
  4. Step 4: Simplify right side
    203,949x = 230,380,800,400
  5. Step 5: Solve for x
    x = 230,380,800,400/203,949
  6. Step 6: Final answer
    x = 1,129,600.05

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.