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Finding the Fourth Proportional to 376.11, 519.08 and 228.78

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Solution

The fourth proportional to 376.11, 519.08 and 228.78 is: 315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.11 : 519.08 = 228.78 : x
  2. Step 2: Convert to fraction form
    376.11/519.08 = 228.78/x
  3. Step 3: Cross multiply
    376.11x = 519.08 × 228.78
  4. Step 4: Simplify right side
    376.11x = 118,753.98
  5. Step 5: Solve for x
    x = 118,753.98/376.11
  6. Step 6: Final answer
    x = 315.74

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