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Finding the Third Proportional to 257,714 and 362,918

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Solution

The third proportional to 257,714 and 362,918 is: 511,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,714 : 362,918 = 362,918 : x
  2. Step 2: Convert to fraction form
    257,714/362,918 = 362,918/x
  3. Step 3: Cross multiply
    257,714x = 362,918 × 362,918
  4. Step 4: Simplify right side
    257,714x = 131,709,474,724
  5. Step 5: Solve for x
    x = 131,709,474,724/257,714
  6. Step 6: Final answer
    x = 511,068.37

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.