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Finding the Fourth Proportional to 349.16, 481.89 and 199.79

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Solution

The fourth proportional to 349.16, 481.89 and 199.79 is: 275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.16 : 481.89 = 199.79 : x
  2. Step 2: Convert to fraction form
    349.16/481.89 = 199.79/x
  3. Step 3: Cross multiply
    349.16x = 481.89 × 199.79
  4. Step 4: Simplify right side
    349.16x = 96,276.95
  5. Step 5: Solve for x
    x = 96,276.95/349.16
  6. Step 6: Final answer
    x = 275.74

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