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Finding the Fourth Proportional to 319.74, 480.01 and 271.95

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Solution

The fourth proportional to 319.74, 480.01 and 271.95 is: 408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.74 : 480.01 = 271.95 : x
  2. Step 2: Convert to fraction form
    319.74/480.01 = 271.95/x
  3. Step 3: Cross multiply
    319.74x = 480.01 × 271.95
  4. Step 4: Simplify right side
    319.74x = 130,538.72
  5. Step 5: Solve for x
    x = 130,538.72/319.74
  6. Step 6: Final answer
    x = 408.27

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