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Finding the Fourth Proportional to 449.85, 674.73 and 268.39

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Solution

The fourth proportional to 449.85, 674.73 and 268.39 is: 402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.85 : 674.73 = 268.39 : x
  2. Step 2: Convert to fraction form
    449.85/674.73 = 268.39/x
  3. Step 3: Cross multiply
    449.85x = 674.73 × 268.39
  4. Step 4: Simplify right side
    449.85x = 181,090.78
  5. Step 5: Solve for x
    x = 181,090.78/449.85
  6. Step 6: Final answer
    x = 402.56

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