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Finding the Fourth Proportional to 316.15, 474.22 and 110.86

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Solution

The fourth proportional to 316.15, 474.22 and 110.86 is: 166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.15 : 474.22 = 110.86 : x
  2. Step 2: Convert to fraction form
    316.15/474.22 = 110.86/x
  3. Step 3: Cross multiply
    316.15x = 474.22 × 110.86
  4. Step 4: Simplify right side
    316.15x = 52,570.57
  5. Step 5: Solve for x
    x = 52,570.57/316.15
  6. Step 6: Final answer
    x = 166.28

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