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Finding the Fourth Proportional to 228.90, 341.11 and 222.62

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Solution

The fourth proportional to 228.90, 341.11 and 222.62 is: 331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.90 : 341.11 = 222.62 : x
  2. Step 2: Convert to fraction form
    228.90/341.11 = 222.62/x
  3. Step 3: Cross multiply
    228.90x = 341.11 × 222.62
  4. Step 4: Simplify right side
    228.90x = 75,936.80
  5. Step 5: Solve for x
    x = 75,936.80/228.90
  6. Step 6: Final answer
    x = 331.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.