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Finding the Fourth Proportional to 535.56, 738.77 and 338.73

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Solution

The fourth proportional to 535.56, 738.77 and 338.73 is: 467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.56 : 738.77 = 338.73 : x
  2. Step 2: Convert to fraction form
    535.56/738.77 = 338.73/x
  3. Step 3: Cross multiply
    535.56x = 738.77 × 338.73
  4. Step 4: Simplify right side
    535.56x = 250,239.10
  5. Step 5: Solve for x
    x = 250,239.10/535.56
  6. Step 6: Final answer
    x = 467.25

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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.