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Finding the Fourth Proportional to 363.18, 543.42 and 217.01

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Solution

The fourth proportional to 363.18, 543.42 and 217.01 is: 324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.18 : 543.42 = 217.01 : x
  2. Step 2: Convert to fraction form
    363.18/543.42 = 217.01/x
  3. Step 3: Cross multiply
    363.18x = 543.42 × 217.01
  4. Step 4: Simplify right side
    363.18x = 117,927.57
  5. Step 5: Solve for x
    x = 117,927.57/363.18
  6. Step 6: Final answer
    x = 324.71

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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.