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Finding the Fourth Proportional to 312.38, 468.62 and 95.91

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Solution

The fourth proportional to 312.38, 468.62 and 95.91 is: 143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.38 : 468.62 = 95.91 : x
  2. Step 2: Convert to fraction form
    312.38/468.62 = 95.91/x
  3. Step 3: Cross multiply
    312.38x = 468.62 × 95.91
  4. Step 4: Simplify right side
    312.38x = 44,943.47
  5. Step 5: Solve for x
    x = 44,943.47/312.38
  6. Step 6: Final answer
    x = 143.87

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