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Finding the Fourth Proportional to 398.28, 597 and 154.74

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Solution

The fourth proportional to 398.28, 597 and 154.74 is: 231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.28 : 597 = 154.74 : x
  2. Step 2: Convert to fraction form
    398.28/597 = 154.74/x
  3. Step 3: Cross multiply
    398.28x = 597 × 154.74
  4. Step 4: Simplify right side
    398.28x = 92,379.78
  5. Step 5: Solve for x
    x = 92,379.78/398.28
  6. Step 6: Final answer
    x = 231.95

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