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Finding the Fourth Proportional to 316.97, 474.77 and 295.61

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Solution

The fourth proportional to 316.97, 474.77 and 295.61 is: 442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.97 : 474.77 = 295.61 : x
  2. Step 2: Convert to fraction form
    316.97/474.77 = 295.61/x
  3. Step 3: Cross multiply
    316.97x = 474.77 × 295.61
  4. Step 4: Simplify right side
    316.97x = 140,345.12
  5. Step 5: Solve for x
    x = 140,345.12/316.97
  6. Step 6: Final answer
    x = 442.78

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