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Finding the Fourth Proportional to 628.73, 943.24 and 263.31

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Solution

The fourth proportional to 628.73, 943.24 and 263.31 is: 395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.73 : 943.24 = 263.31 : x
  2. Step 2: Convert to fraction form
    628.73/943.24 = 263.31/x
  3. Step 3: Cross multiply
    628.73x = 943.24 × 263.31
  4. Step 4: Simplify right side
    628.73x = 248,363.87
  5. Step 5: Solve for x
    x = 248,363.87/628.73
  6. Step 6: Final answer
    x = 395.03

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