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Finding the Third Proportional to 257,067 and 557,038

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Solution

The third proportional to 257,067 and 557,038 is: 1,207,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,067 : 557,038 = 557,038 : x
  2. Step 2: Convert to fraction form
    257,067/557,038 = 557,038/x
  3. Step 3: Cross multiply
    257,067x = 557,038 × 557,038
  4. Step 4: Simplify right side
    257,067x = 310,291,333,444
  5. Step 5: Solve for x
    x = 310,291,333,444/257,067
  6. Step 6: Final answer
    x = 1,207,044.60

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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.