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Finding the Fourth Proportional to 514.29, 770.92 and 331.81

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Solution

The fourth proportional to 514.29, 770.92 and 331.81 is: 497.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.29 : 770.92 = 331.81 : x
  2. Step 2: Convert to fraction form
    514.29/770.92 = 331.81/x
  3. Step 3: Cross multiply
    514.29x = 770.92 × 331.81
  4. Step 4: Simplify right side
    514.29x = 255,797.29
  5. Step 5: Solve for x
    x = 255,797.29/514.29
  6. Step 6: Final answer
    x = 497.38

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