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Finding the Fourth Proportional to 311.72, 467.84 and 292.60

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Solution

The fourth proportional to 311.72, 467.84 and 292.60 is: 439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.72 : 467.84 = 292.60 : x
  2. Step 2: Convert to fraction form
    311.72/467.84 = 292.60/x
  3. Step 3: Cross multiply
    311.72x = 467.84 × 292.60
  4. Step 4: Simplify right side
    311.72x = 136,889.98
  5. Step 5: Solve for x
    x = 136,889.98/311.72
  6. Step 6: Final answer
    x = 439.14

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