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Finding the Fourth Proportional to 232.87, 321.45 and 208.27

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Solution

The fourth proportional to 232.87, 321.45 and 208.27 is: 287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.87 : 321.45 = 208.27 : x
  2. Step 2: Convert to fraction form
    232.87/321.45 = 208.27/x
  3. Step 3: Cross multiply
    232.87x = 321.45 × 208.27
  4. Step 4: Simplify right side
    232.87x = 66,946.78
  5. Step 5: Solve for x
    x = 66,946.78/232.87
  6. Step 6: Final answer
    x = 287.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.