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Finding the Fourth Proportional to 228.73, 342.82 and 163.66

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Solution

The fourth proportional to 228.73, 342.82 and 163.66 is: 245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228.73 : 342.82 = 163.66 : x
  2. Step 2: Convert to fraction form
    228.73/342.82 = 163.66/x
  3. Step 3: Cross multiply
    228.73x = 342.82 × 163.66
  4. Step 4: Simplify right side
    228.73x = 56,105.92
  5. Step 5: Solve for x
    x = 56,105.92/228.73
  6. Step 6: Final answer
    x = 245.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.