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Finding the Fourth Proportional to 496.19, 744.72 and 252.85

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Solution

The fourth proportional to 496.19, 744.72 and 252.85 is: 379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.19 : 744.72 = 252.85 : x
  2. Step 2: Convert to fraction form
    496.19/744.72 = 252.85/x
  3. Step 3: Cross multiply
    496.19x = 744.72 × 252.85
  4. Step 4: Simplify right side
    496.19x = 188,297.46
  5. Step 5: Solve for x
    x = 188,297.46/496.19
  6. Step 6: Final answer
    x = 379.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.