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Finding the Third Proportional to 412.88 and 537.56

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Solution

The third proportional to 412.88 and 537.56 is: 699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.88 : 537.56 = 537.56 : x
  2. Step 2: Convert to fraction form
    412.88/537.56 = 537.56/x
  3. Step 3: Cross multiply
    412.88x = 537.56 × 537.56
  4. Step 4: Simplify right side
    412.88x = 288,973.44
  5. Step 5: Solve for x
    x = 288,973.44/412.88
  6. Step 6: Final answer
    x = 699.91

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.