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Finding the Fourth Proportional to 252.54, 378.89 and 124.20

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Solution

The fourth proportional to 252.54, 378.89 and 124.20 is: 186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.54 : 378.89 = 124.20 : x
  2. Step 2: Convert to fraction form
    252.54/378.89 = 124.20/x
  3. Step 3: Cross multiply
    252.54x = 378.89 × 124.20
  4. Step 4: Simplify right side
    252.54x = 47,058.14
  5. Step 5: Solve for x
    x = 47,058.14/252.54
  6. Step 6: Final answer
    x = 186.34

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