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Finding the Fourth Proportional to 311.18, 466.77 and 105.75

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Solution

The fourth proportional to 311.18, 466.77 and 105.75 is: 158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.18 : 466.77 = 105.75 : x
  2. Step 2: Convert to fraction form
    311.18/466.77 = 105.75/x
  3. Step 3: Cross multiply
    311.18x = 466.77 × 105.75
  4. Step 4: Simplify right side
    311.18x = 49,360.93
  5. Step 5: Solve for x
    x = 49,360.93/311.18
  6. Step 6: Final answer
    x = 158.63

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