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Finding the Fourth Proportional to 494.72, 682.80 and 363.56

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Solution

The fourth proportional to 494.72, 682.80 and 363.56 is: 501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.72 : 682.80 = 363.56 : x
  2. Step 2: Convert to fraction form
    494.72/682.80 = 363.56/x
  3. Step 3: Cross multiply
    494.72x = 682.80 × 363.56
  4. Step 4: Simplify right side
    494.72x = 248,238.77
  5. Step 5: Solve for x
    x = 248,238.77/494.72
  6. Step 6: Final answer
    x = 501.78

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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.