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Finding the Fourth Proportional to 227.44, 339.44 and 203.12

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Solution

The fourth proportional to 227.44, 339.44 and 203.12 is: 303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.44 : 339.44 = 203.12 : x
  2. Step 2: Convert to fraction form
    227.44/339.44 = 203.12/x
  3. Step 3: Cross multiply
    227.44x = 339.44 × 203.12
  4. Step 4: Simplify right side
    227.44x = 68,947.05
  5. Step 5: Solve for x
    x = 68,947.05/227.44
  6. Step 6: Final answer
    x = 303.14

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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.