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Finding the Fourth Proportional to 317.82, 477.12 and 196.32

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Solution

The fourth proportional to 317.82, 477.12 and 196.32 is: 294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.82 : 477.12 = 196.32 : x
  2. Step 2: Convert to fraction form
    317.82/477.12 = 196.32/x
  3. Step 3: Cross multiply
    317.82x = 477.12 × 196.32
  4. Step 4: Simplify right side
    317.82x = 93,668.20
  5. Step 5: Solve for x
    x = 93,668.20/317.82
  6. Step 6: Final answer
    x = 294.72

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