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Finding the Fourth Proportional to 633.12, 949.24 and 308.68

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Solution

The fourth proportional to 633.12, 949.24 and 308.68 is: 462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.12 : 949.24 = 308.68 : x
  2. Step 2: Convert to fraction form
    633.12/949.24 = 308.68/x
  3. Step 3: Cross multiply
    633.12x = 949.24 × 308.68
  4. Step 4: Simplify right side
    633.12x = 293,011.40
  5. Step 5: Solve for x
    x = 293,011.40/633.12
  6. Step 6: Final answer
    x = 462.81

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