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Finding the Fourth Proportional to 362.69, 543.13 and 331.97

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Solution

The fourth proportional to 362.69, 543.13 and 331.97 is: 497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.69 : 543.13 = 331.97 : x
  2. Step 2: Convert to fraction form
    362.69/543.13 = 331.97/x
  3. Step 3: Cross multiply
    362.69x = 543.13 × 331.97
  4. Step 4: Simplify right side
    362.69x = 180,301.19
  5. Step 5: Solve for x
    x = 180,301.19/362.69
  6. Step 6: Final answer
    x = 497.12

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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.