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Finding the Fourth Proportional to 535.21, 738.87 and 338.83

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Solution

The fourth proportional to 535.21, 738.87 and 338.83 is: 467.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.21 : 738.87 = 338.83 : x
  2. Step 2: Convert to fraction form
    535.21/738.87 = 338.83/x
  3. Step 3: Cross multiply
    535.21x = 738.87 × 338.83
  4. Step 4: Simplify right side
    535.21x = 250,351.32
  5. Step 5: Solve for x
    x = 250,351.32/535.21
  6. Step 6: Final answer
    x = 467.76

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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.