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Finding the Fourth Proportional to 235.85, 354.18 and 227.75

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Solution

The fourth proportional to 235.85, 354.18 and 227.75 is: 342.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.85 : 354.18 = 227.75 : x
  2. Step 2: Convert to fraction form
    235.85/354.18 = 227.75/x
  3. Step 3: Cross multiply
    235.85x = 354.18 × 227.75
  4. Step 4: Simplify right side
    235.85x = 80,664.50
  5. Step 5: Solve for x
    x = 80,664.50/235.85
  6. Step 6: Final answer
    x = 342.02

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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.