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Finding the Fourth Proportional to 363.96, 542.44 and 356.76

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Solution

The fourth proportional to 363.96, 542.44 and 356.76 is: 531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.96 : 542.44 = 356.76 : x
  2. Step 2: Convert to fraction form
    363.96/542.44 = 356.76/x
  3. Step 3: Cross multiply
    363.96x = 542.44 × 356.76
  4. Step 4: Simplify right side
    363.96x = 193,520.89
  5. Step 5: Solve for x
    x = 193,520.89/363.96
  6. Step 6: Final answer
    x = 531.71

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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.