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Finding the Fourth Proportional to 529.20, 792.71 and 312.25

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Solution

The fourth proportional to 529.20, 792.71 and 312.25 is: 467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.20 : 792.71 = 312.25 : x
  2. Step 2: Convert to fraction form
    529.20/792.71 = 312.25/x
  3. Step 3: Cross multiply
    529.20x = 792.71 × 312.25
  4. Step 4: Simplify right side
    529.20x = 247,523.70
  5. Step 5: Solve for x
    x = 247,523.70/529.20
  6. Step 6: Final answer
    x = 467.74

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