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Finding the Fourth Proportional to 289.08, 433.98 and 228.96

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Solution

The fourth proportional to 289.08, 433.98 and 228.96 is: 343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.08 : 433.98 = 228.96 : x
  2. Step 2: Convert to fraction form
    289.08/433.98 = 228.96/x
  3. Step 3: Cross multiply
    289.08x = 433.98 × 228.96
  4. Step 4: Simplify right side
    289.08x = 99,364.06
  5. Step 5: Solve for x
    x = 99,364.06/289.08
  6. Step 6: Final answer
    x = 343.73

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