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Finding the Fourth Proportional to 531.61, 733.47 and 310.43

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Solution

The fourth proportional to 531.61, 733.47 and 310.43 is: 428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.61 : 733.47 = 310.43 : x
  2. Step 2: Convert to fraction form
    531.61/733.47 = 310.43/x
  3. Step 3: Cross multiply
    531.61x = 733.47 × 310.43
  4. Step 4: Simplify right side
    531.61x = 227,693.51
  5. Step 5: Solve for x
    x = 227,693.51/531.61
  6. Step 6: Final answer
    x = 428.31

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