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Finding the Fourth Proportional to 338.72, 467.04 and 228.16

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Solution

The fourth proportional to 338.72, 467.04 and 228.16 is: 314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.72 : 467.04 = 228.16 : x
  2. Step 2: Convert to fraction form
    338.72/467.04 = 228.16/x
  3. Step 3: Cross multiply
    338.72x = 467.04 × 228.16
  4. Step 4: Simplify right side
    338.72x = 106,559.85
  5. Step 5: Solve for x
    x = 106,559.85/338.72
  6. Step 6: Final answer
    x = 314.60

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