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Finding the Fourth Proportional to 398.13, 597.11 and 181.66

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Solution

The fourth proportional to 398.13, 597.11 and 181.66 is: 272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.13 : 597.11 = 181.66 : x
  2. Step 2: Convert to fraction form
    398.13/597.11 = 181.66/x
  3. Step 3: Cross multiply
    398.13x = 597.11 × 181.66
  4. Step 4: Simplify right side
    398.13x = 108,468.02
  5. Step 5: Solve for x
    x = 108,468.02/398.13
  6. Step 6: Final answer
    x = 272.44

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