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Finding the Third Proportional to 212,124 and 297,330

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Solution

The third proportional to 212,124 and 297,330 is: 416,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,124 : 297,330 = 297,330 : x
  2. Step 2: Convert to fraction form
    212,124/297,330 = 297,330/x
  3. Step 3: Cross multiply
    212,124x = 297,330 × 297,330
  4. Step 4: Simplify right side
    212,124x = 88,405,128,900
  5. Step 5: Solve for x
    x = 88,405,128,900/212,124
  6. Step 6: Final answer
    x = 416,761.56

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.