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Finding the Fourth Proportional to 353.73, 532.68 and 308.61

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Solution

The fourth proportional to 353.73, 532.68 and 308.61 is: 464.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.73 : 532.68 = 308.61 : x
  2. Step 2: Convert to fraction form
    353.73/532.68 = 308.61/x
  3. Step 3: Cross multiply
    353.73x = 532.68 × 308.61
  4. Step 4: Simplify right side
    353.73x = 164,390.37
  5. Step 5: Solve for x
    x = 164,390.37/353.73
  6. Step 6: Final answer
    x = 464.73

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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.