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Finding the Fourth Proportional to 251.76, 347.40 and 141.22

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Solution

The fourth proportional to 251.76, 347.40 and 141.22 is: 194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.76 : 347.40 = 141.22 : x
  2. Step 2: Convert to fraction form
    251.76/347.40 = 141.22/x
  3. Step 3: Cross multiply
    251.76x = 347.40 × 141.22
  4. Step 4: Simplify right side
    251.76x = 49,059.83
  5. Step 5: Solve for x
    x = 49,059.83/251.76
  6. Step 6: Final answer
    x = 194.87

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