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Finding the Fourth Proportional to 228.85, 341.04 and 222.25

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Solution

The fourth proportional to 228.85, 341.04 and 222.25 is: 331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.85 : 341.04 = 222.25 : x
  2. Step 2: Convert to fraction form
    228.85/341.04 = 222.25/x
  3. Step 3: Cross multiply
    228.85x = 341.04 × 222.25
  4. Step 4: Simplify right side
    228.85x = 75,796.14
  5. Step 5: Solve for x
    x = 75,796.14/228.85
  6. Step 6: Final answer
    x = 331.20

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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.