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Finding the Fourth Proportional to 235.56, 350.91 and 228.39

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Solution

The fourth proportional to 235.56, 350.91 and 228.39 is: 340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.56 : 350.91 = 228.39 : x
  2. Step 2: Convert to fraction form
    235.56/350.91 = 228.39/x
  3. Step 3: Cross multiply
    235.56x = 350.91 × 228.39
  4. Step 4: Simplify right side
    235.56x = 80,144.33
  5. Step 5: Solve for x
    x = 80,144.33/235.56
  6. Step 6: Final answer
    x = 340.23

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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.