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Finding the Fourth Proportional to 235.68, 351.09 and 228.52

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Solution

The fourth proportional to 235.68, 351.09 and 228.52 is: 340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.68 : 351.09 = 228.52 : x
  2. Step 2: Convert to fraction form
    235.68/351.09 = 228.52/x
  3. Step 3: Cross multiply
    235.68x = 351.09 × 228.52
  4. Step 4: Simplify right side
    235.68x = 80,229.33
  5. Step 5: Solve for x
    x = 80,229.33/235.68
  6. Step 6: Final answer
    x = 340.42

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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.