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Finding the Fourth Proportional to 221.80, 332.76 and 164.76

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Solution

The fourth proportional to 221.80, 332.76 and 164.76 is: 247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.80 : 332.76 = 164.76 : x
  2. Step 2: Convert to fraction form
    221.80/332.76 = 164.76/x
  3. Step 3: Cross multiply
    221.80x = 332.76 × 164.76
  4. Step 4: Simplify right side
    221.80x = 54,825.54
  5. Step 5: Solve for x
    x = 54,825.54/221.80
  6. Step 6: Final answer
    x = 247.18

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