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Finding the Third Proportional to 257,463 and 557,808

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Solution

The third proportional to 257,463 and 557,808 is: 1,208,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,463 : 557,808 = 557,808 : x
  2. Step 2: Convert to fraction form
    257,463/557,808 = 557,808/x
  3. Step 3: Cross multiply
    257,463x = 557,808 × 557,808
  4. Step 4: Simplify right side
    257,463x = 311,149,764,864
  5. Step 5: Solve for x
    x = 311,149,764,864/257,463
  6. Step 6: Final answer
    x = 1,208,522.25

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.