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Finding the Fourth Proportional to 363.11, 500.89 and 300.58

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Solution

The fourth proportional to 363.11, 500.89 and 300.58 is: 414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.11 : 500.89 = 300.58 : x
  2. Step 2: Convert to fraction form
    363.11/500.89 = 300.58/x
  3. Step 3: Cross multiply
    363.11x = 500.89 × 300.58
  4. Step 4: Simplify right side
    363.11x = 150,557.52
  5. Step 5: Solve for x
    x = 150,557.52/363.11
  6. Step 6: Final answer
    x = 414.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.