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Finding the Fourth Proportional to 221, 331.58 and 107.08

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Solution

The fourth proportional to 221, 331.58 and 107.08 is: 160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221 : 331.58 = 107.08 : x
  2. Step 2: Convert to fraction form
    221/331.58 = 107.08/x
  3. Step 3: Cross multiply
    221x = 331.58 × 107.08
  4. Step 4: Simplify right side
    221x = 35,505.59
  5. Step 5: Solve for x
    x = 35,505.59/221
  6. Step 6: Final answer
    x = 160.66

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