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Finding the Fourth Proportional to 388.25, 535.85 and 232.97

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Solution

The fourth proportional to 388.25, 535.85 and 232.97 is: 321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.25 : 535.85 = 232.97 : x
  2. Step 2: Convert to fraction form
    388.25/535.85 = 232.97/x
  3. Step 3: Cross multiply
    388.25x = 535.85 × 232.97
  4. Step 4: Simplify right side
    388.25x = 124,835.81
  5. Step 5: Solve for x
    x = 124,835.81/388.25
  6. Step 6: Final answer
    x = 321.53

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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.