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Finding the Fourth Proportional to 308.88, 461.07 and 272.43

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Solution

The fourth proportional to 308.88, 461.07 and 272.43 is: 406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.88 : 461.07 = 272.43 : x
  2. Step 2: Convert to fraction form
    308.88/461.07 = 272.43/x
  3. Step 3: Cross multiply
    308.88x = 461.07 × 272.43
  4. Step 4: Simplify right side
    308.88x = 125,609.30
  5. Step 5: Solve for x
    x = 125,609.30/308.88
  6. Step 6: Final answer
    x = 406.66

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