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Finding the Fourth Proportional to 548.72, 823.18 and 223.92

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Solution

The fourth proportional to 548.72, 823.18 and 223.92 is: 335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.72 : 823.18 = 223.92 : x
  2. Step 2: Convert to fraction form
    548.72/823.18 = 223.92/x
  3. Step 3: Cross multiply
    548.72x = 823.18 × 223.92
  4. Step 4: Simplify right side
    548.72x = 184,326.47
  5. Step 5: Solve for x
    x = 184,326.47/548.72
  6. Step 6: Final answer
    x = 335.92

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