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Finding the Fourth Proportional to 318.14, 439 and 178.24

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Solution

The fourth proportional to 318.14, 439 and 178.24 is: 245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318.14 : 439 = 178.24 : x
  2. Step 2: Convert to fraction form
    318.14/439 = 178.24/x
  3. Step 3: Cross multiply
    318.14x = 439 × 178.24
  4. Step 4: Simplify right side
    318.14x = 78,247.36
  5. Step 5: Solve for x
    x = 78,247.36/318.14
  6. Step 6: Final answer
    x = 245.95

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