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Finding the Fourth Proportional to 331.75, 457.75 and 191.85

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Solution

The fourth proportional to 331.75, 457.75 and 191.85 is: 264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.75 : 457.75 = 191.85 : x
  2. Step 2: Convert to fraction form
    331.75/457.75 = 191.85/x
  3. Step 3: Cross multiply
    331.75x = 457.75 × 191.85
  4. Step 4: Simplify right side
    331.75x = 87,819.34
  5. Step 5: Solve for x
    x = 87,819.34/331.75
  6. Step 6: Final answer
    x = 264.72

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