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Finding the Fourth Proportional to 496.86, 685.62 and 275.82

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Solution

The fourth proportional to 496.86, 685.62 and 275.82 is: 380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.86 : 685.62 = 275.82 : x
  2. Step 2: Convert to fraction form
    496.86/685.62 = 275.82/x
  3. Step 3: Cross multiply
    496.86x = 685.62 × 275.82
  4. Step 4: Simplify right side
    496.86x = 189,107.71
  5. Step 5: Solve for x
    x = 189,107.71/496.86
  6. Step 6: Final answer
    x = 380.61

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