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Finding the Fourth Proportional to 332.92, 502.45 and 324.28

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Solution

The fourth proportional to 332.92, 502.45 and 324.28 is: 489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.92 : 502.45 = 324.28 : x
  2. Step 2: Convert to fraction form
    332.92/502.45 = 324.28/x
  3. Step 3: Cross multiply
    332.92x = 502.45 × 324.28
  4. Step 4: Simplify right side
    332.92x = 162,934.49
  5. Step 5: Solve for x
    x = 162,934.49/332.92
  6. Step 6: Final answer
    x = 489.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.