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Finding the Fourth Proportional to 149.28, 223.98 and 53.16

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Solution

The fourth proportional to 149.28, 223.98 and 53.16 is: 79.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.28 : 223.98 = 53.16 : x
  2. Step 2: Convert to fraction form
    149.28/223.98 = 53.16/x
  3. Step 3: Cross multiply
    149.28x = 223.98 × 53.16
  4. Step 4: Simplify right side
    149.28x = 11,906.78
  5. Step 5: Solve for x
    x = 11,906.78/149.28
  6. Step 6: Final answer
    x = 79.76

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