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Finding the Fourth Proportional to 363.75, 501.99 and 223.89

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Solution

The fourth proportional to 363.75, 501.99 and 223.89 is: 308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.75 : 501.99 = 223.89 : x
  2. Step 2: Convert to fraction form
    363.75/501.99 = 223.89/x
  3. Step 3: Cross multiply
    363.75x = 501.99 × 223.89
  4. Step 4: Simplify right side
    363.75x = 112,390.54
  5. Step 5: Solve for x
    x = 112,390.54/363.75
  6. Step 6: Final answer
    x = 308.98

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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.