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Finding the Fourth Proportional to 243.45, 362.58 and 227.88

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Solution

The fourth proportional to 243.45, 362.58 and 227.88 is: 339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.45 : 362.58 = 227.88 : x
  2. Step 2: Convert to fraction form
    243.45/362.58 = 227.88/x
  3. Step 3: Cross multiply
    243.45x = 362.58 × 227.88
  4. Step 4: Simplify right side
    243.45x = 82,624.73
  5. Step 5: Solve for x
    x = 82,624.73/243.45
  6. Step 6: Final answer
    x = 339.39

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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.