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Finding the Fourth Proportional to 489.08, 674.95 and 268.05

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Solution

The fourth proportional to 489.08, 674.95 and 268.05 is: 369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.08 : 674.95 = 268.05 : x
  2. Step 2: Convert to fraction form
    489.08/674.95 = 268.05/x
  3. Step 3: Cross multiply
    489.08x = 674.95 × 268.05
  4. Step 4: Simplify right side
    489.08x = 180,920.67
  5. Step 5: Solve for x
    x = 180,920.67/489.08
  6. Step 6: Final answer
    x = 369.92

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