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Finding the Fourth Proportional to 471.52, 706.24 and 326.80

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Solution

The fourth proportional to 471.52, 706.24 and 326.80 is: 489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.52 : 706.24 = 326.80 : x
  2. Step 2: Convert to fraction form
    471.52/706.24 = 326.80/x
  3. Step 3: Cross multiply
    471.52x = 706.24 × 326.80
  4. Step 4: Simplify right side
    471.52x = 230,799.23
  5. Step 5: Solve for x
    x = 230,799.23/471.52
  6. Step 6: Final answer
    x = 489.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.