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Finding the Fourth Proportional to 335.85, 463.50 and 286.71

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Solution

The fourth proportional to 335.85, 463.50 and 286.71 is: 395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.85 : 463.50 = 286.71 : x
  2. Step 2: Convert to fraction form
    335.85/463.50 = 286.71/x
  3. Step 3: Cross multiply
    335.85x = 463.50 × 286.71
  4. Step 4: Simplify right side
    335.85x = 132,890.09
  5. Step 5: Solve for x
    x = 132,890.09/335.85
  6. Step 6: Final answer
    x = 395.68

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