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Finding the Fourth Proportional to 618.01, 927.21 and 329.38

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Solution

The fourth proportional to 618.01, 927.21 and 329.38 is: 494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.01 : 927.21 = 329.38 : x
  2. Step 2: Convert to fraction form
    618.01/927.21 = 329.38/x
  3. Step 3: Cross multiply
    618.01x = 927.21 × 329.38
  4. Step 4: Simplify right side
    618.01x = 305,404.43
  5. Step 5: Solve for x
    x = 305,404.43/618.01
  6. Step 6: Final answer
    x = 494.17

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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.