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Finding the Third Proportional to 212,124 and 457,442

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Solution

The third proportional to 212,124 and 457,442 is: 986,466.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,124 : 457,442 = 457,442 : x
  2. Step 2: Convert to fraction form
    212,124/457,442 = 457,442/x
  3. Step 3: Cross multiply
    212,124x = 457,442 × 457,442
  4. Step 4: Simplify right side
    212,124x = 209,253,183,364
  5. Step 5: Solve for x
    x = 209,253,183,364/212,124
  6. Step 6: Final answer
    x = 986,466.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.