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Finding the Third Proportional to 257,149.69 and 557,204.06

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Solution

The third proportional to 257,149.69 and 557,204.06 is: 1,207,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,149.69 : 557,204.06 = 557,204.06 : x
  2. Step 2: Convert to fraction form
    257,149.69/557,204.06 = 557,204.06/x
  3. Step 3: Cross multiply
    257,149.69x = 557,204.06 × 557,204.06
  4. Step 4: Simplify right side
    257,149.69x = 310,476,367,266.50
  5. Step 5: Solve for x
    x = 310,476,367,266.50/257,149.69
  6. Step 6: Final answer
    x = 1,207,376.02

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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.