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Finding the Fourth Proportional to 363.93, 545.67 and 201.57

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Solution

The fourth proportional to 363.93, 545.67 and 201.57 is: 302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.93 : 545.67 = 201.57 : x
  2. Step 2: Convert to fraction form
    363.93/545.67 = 201.57/x
  3. Step 3: Cross multiply
    363.93x = 545.67 × 201.57
  4. Step 4: Simplify right side
    363.93x = 109,990.70
  5. Step 5: Solve for x
    x = 109,990.70/363.93
  6. Step 6: Final answer
    x = 302.23

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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.