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Finding the Fourth Proportional to 330.94, 496.11 and 208.84

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Solution

The fourth proportional to 330.94, 496.11 and 208.84 is: 313.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.94 : 496.11 = 208.84 : x
  2. Step 2: Convert to fraction form
    330.94/496.11 = 208.84/x
  3. Step 3: Cross multiply
    330.94x = 496.11 × 208.84
  4. Step 4: Simplify right side
    330.94x = 103,607.61
  5. Step 5: Solve for x
    x = 103,607.61/330.94
  6. Step 6: Final answer
    x = 313.07

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