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Finding the Fourth Proportional to 667,383.87, 1,001,067.36 and 161,949

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Solution

The fourth proportional to 667,383.87, 1,001,067.36 and 161,949 is: 242,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,383.87 : 1,001,067.36 = 161,949 : x
  2. Step 2: Convert to fraction form
    667,383.87/1,001,067.36 = 161,949/x
  3. Step 3: Cross multiply
    667,383.87x = 1,001,067.36 × 161,949
  4. Step 4: Simplify right side
    667,383.87x = 162,121,857,884.64
  5. Step 5: Solve for x
    x = 162,121,857,884.64/667,383.87
  6. Step 6: Final answer
    x = 242,921.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.