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Finding the Fourth Proportional to 149.28, 223.40 and 97.92

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Solution

The fourth proportional to 149.28, 223.40 and 97.92 is: 146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.28 : 223.40 = 97.92 : x
  2. Step 2: Convert to fraction form
    149.28/223.40 = 97.92/x
  3. Step 3: Cross multiply
    149.28x = 223.40 × 97.92
  4. Step 4: Simplify right side
    149.28x = 21,875.33
  5. Step 5: Solve for x
    x = 21,875.33/149.28
  6. Step 6: Final answer
    x = 146.54

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