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Finding the Fourth Proportional to 228.42, 343.94 and 167.97

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Solution

The fourth proportional to 228.42, 343.94 and 167.97 is: 252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.42 : 343.94 = 167.97 : x
  2. Step 2: Convert to fraction form
    228.42/343.94 = 167.97/x
  3. Step 3: Cross multiply
    228.42x = 343.94 × 167.97
  4. Step 4: Simplify right side
    228.42x = 57,771.60
  5. Step 5: Solve for x
    x = 57,771.60/228.42
  6. Step 6: Final answer
    x = 252.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.