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Finding the Fourth Proportional to 636.99, 955.62 and 271.83

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Solution

The fourth proportional to 636.99, 955.62 and 271.83 is: 407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.99 : 955.62 = 271.83 : x
  2. Step 2: Convert to fraction form
    636.99/955.62 = 271.83/x
  3. Step 3: Cross multiply
    636.99x = 955.62 × 271.83
  4. Step 4: Simplify right side
    636.99x = 259,766.18
  5. Step 5: Solve for x
    x = 259,766.18/636.99
  6. Step 6: Final answer
    x = 407.80

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