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Finding the Fourth Proportional to 538.36, 742.76 and 363.73

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Solution

The fourth proportional to 538.36, 742.76 and 363.73 is: 501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.36 : 742.76 = 363.73 : x
  2. Step 2: Convert to fraction form
    538.36/742.76 = 363.73/x
  3. Step 3: Cross multiply
    538.36x = 742.76 × 363.73
  4. Step 4: Simplify right side
    538.36x = 270,164.09
  5. Step 5: Solve for x
    x = 270,164.09/538.36
  6. Step 6: Final answer
    x = 501.83

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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.