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Finding the Third Proportional to 329 and 435.25

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Solution

The third proportional to 329 and 435.25 is: 575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329 : 435.25 = 435.25 : x
  2. Step 2: Convert to fraction form
    329/435.25 = 435.25/x
  3. Step 3: Cross multiply
    329x = 435.25 × 435.25
  4. Step 4: Simplify right side
    329x = 189,442.56
  5. Step 5: Solve for x
    x = 189,442.56/329
  6. Step 6: Final answer
    x = 575.81

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.