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Finding the Fourth Proportional to 531.72, 733.68 and 310.59

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Solution

The fourth proportional to 531.72, 733.68 and 310.59 is: 428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.72 : 733.68 = 310.59 : x
  2. Step 2: Convert to fraction form
    531.72/733.68 = 310.59/x
  3. Step 3: Cross multiply
    531.72x = 733.68 × 310.59
  4. Step 4: Simplify right side
    531.72x = 227,873.67
  5. Step 5: Solve for x
    x = 227,873.67/531.72
  6. Step 6: Final answer
    x = 428.56

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