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Finding the Fourth Proportional to 227.48, 339.46 and 203.18

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Solution

The fourth proportional to 227.48, 339.46 and 203.18 is: 303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.48 : 339.46 = 203.18 : x
  2. Step 2: Convert to fraction form
    227.48/339.46 = 203.18/x
  3. Step 3: Cross multiply
    227.48x = 339.46 × 203.18
  4. Step 4: Simplify right side
    227.48x = 68,971.48
  5. Step 5: Solve for x
    x = 68,971.48/227.48
  6. Step 6: Final answer
    x = 303.20

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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.