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Finding the Fourth Proportional to 548.82, 757.29 and 315.96

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Solution

The fourth proportional to 548.82, 757.29 and 315.96 is: 435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.82 : 757.29 = 315.96 : x
  2. Step 2: Convert to fraction form
    548.82/757.29 = 315.96/x
  3. Step 3: Cross multiply
    548.82x = 757.29 × 315.96
  4. Step 4: Simplify right side
    548.82x = 239,273.35
  5. Step 5: Solve for x
    x = 239,273.35/548.82
  6. Step 6: Final answer
    x = 435.98

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