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Finding the Fourth Proportional to 363.08, 500.74 and 223.20

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Solution

The fourth proportional to 363.08, 500.74 and 223.20 is: 307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.08 : 500.74 = 223.20 : x
  2. Step 2: Convert to fraction form
    363.08/500.74 = 223.20/x
  3. Step 3: Cross multiply
    363.08x = 500.74 × 223.20
  4. Step 4: Simplify right side
    363.08x = 111,765.17
  5. Step 5: Solve for x
    x = 111,765.17/363.08
  6. Step 6: Final answer
    x = 307.83

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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.