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Finding the Fourth Proportional to 325.84, 449.40 and 276.88

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Solution

The fourth proportional to 325.84, 449.40 and 276.88 is: 381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.84 : 449.40 = 276.88 : x
  2. Step 2: Convert to fraction form
    325.84/449.40 = 276.88/x
  3. Step 3: Cross multiply
    325.84x = 449.40 × 276.88
  4. Step 4: Simplify right side
    325.84x = 124,429.87
  5. Step 5: Solve for x
    x = 124,429.87/325.84
  6. Step 6: Final answer
    x = 381.87

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