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Finding the Fourth Proportional to 618,067.50, 927,174.75 and 218,626.53

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Solution

The fourth proportional to 618,067.50, 927,174.75 and 218,626.53 is: 327,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,067.50 : 927,174.75 = 218,626.53 : x
  2. Step 2: Convert to fraction form
    618,067.50/927,174.75 = 218,626.53/x
  3. Step 3: Cross multiply
    618,067.50x = 927,174.75 × 218,626.53
  4. Step 4: Simplify right side
    618,067.50x = 202,704,998,296.12
  5. Step 5: Solve for x
    x = 202,704,998,296.12/618,067.50
  6. Step 6: Final answer
    x = 327,965.79

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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.