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Finding the Fourth Proportional to 223.28, 336.26 and 196.52

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Solution

The fourth proportional to 223.28, 336.26 and 196.52 is: 295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.28 : 336.26 = 196.52 : x
  2. Step 2: Convert to fraction form
    223.28/336.26 = 196.52/x
  3. Step 3: Cross multiply
    223.28x = 336.26 × 196.52
  4. Step 4: Simplify right side
    223.28x = 66,081.82
  5. Step 5: Solve for x
    x = 66,081.82/223.28
  6. Step 6: Final answer
    x = 295.96

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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.