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Finding the Third Proportional to 222,218 and 317,542

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Solution

The third proportional to 222,218 and 317,542 is: 453,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,218 : 317,542 = 317,542 : x
  2. Step 2: Convert to fraction form
    222,218/317,542 = 317,542/x
  3. Step 3: Cross multiply
    222,218x = 317,542 × 317,542
  4. Step 4: Simplify right side
    222,218x = 100,832,921,764
  5. Step 5: Solve for x
    x = 100,832,921,764/222,218
  6. Step 6: Final answer
    x = 453,756.77

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.