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Finding the Fourth Proportional to 363.81, 545.94 and 158.43

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Solution

The fourth proportional to 363.81, 545.94 and 158.43 is: 237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.81 : 545.94 = 158.43 : x
  2. Step 2: Convert to fraction form
    363.81/545.94 = 158.43/x
  3. Step 3: Cross multiply
    363.81x = 545.94 × 158.43
  4. Step 4: Simplify right side
    363.81x = 86,493.27
  5. Step 5: Solve for x
    x = 86,493.27/363.81
  6. Step 6: Final answer
    x = 237.74

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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.