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Finding the Fourth Proportional to 662.48, 993.78 and 229.82

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Solution

The fourth proportional to 662.48, 993.78 and 229.82 is: 344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.48 : 993.78 = 229.82 : x
  2. Step 2: Convert to fraction form
    662.48/993.78 = 229.82/x
  3. Step 3: Cross multiply
    662.48x = 993.78 × 229.82
  4. Step 4: Simplify right side
    662.48x = 228,390.52
  5. Step 5: Solve for x
    x = 228,390.52/662.48
  6. Step 6: Final answer
    x = 344.75

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