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Finding the Fourth Proportional to 484.12, 724.65 and 310.56

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Solution

The fourth proportional to 484.12, 724.65 and 310.56 is: 464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.12 : 724.65 = 310.56 : x
  2. Step 2: Convert to fraction form
    484.12/724.65 = 310.56/x
  3. Step 3: Cross multiply
    484.12x = 724.65 × 310.56
  4. Step 4: Simplify right side
    484.12x = 225,047.30
  5. Step 5: Solve for x
    x = 225,047.30/484.12
  6. Step 6: Final answer
    x = 464.86

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