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Finding the Fourth Proportional to 496.16, 684.72 and 275.12

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Solution

The fourth proportional to 496.16, 684.72 and 275.12 is: 379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.16 : 684.72 = 275.12 : x
  2. Step 2: Convert to fraction form
    496.16/684.72 = 275.12/x
  3. Step 3: Cross multiply
    496.16x = 684.72 × 275.12
  4. Step 4: Simplify right side
    496.16x = 188,380.17
  5. Step 5: Solve for x
    x = 188,380.17/496.16
  6. Step 6: Final answer
    x = 379.68

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