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Finding the Fourth Proportional to 352.62, 527.04 and 321.62

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Solution

The fourth proportional to 352.62, 527.04 and 321.62 is: 480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.62 : 527.04 = 321.62 : x
  2. Step 2: Convert to fraction form
    352.62/527.04 = 321.62/x
  3. Step 3: Cross multiply
    352.62x = 527.04 × 321.62
  4. Step 4: Simplify right side
    352.62x = 169,503.97
  5. Step 5: Solve for x
    x = 169,503.97/352.62
  6. Step 6: Final answer
    x = 480.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.