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Finding the Third Proportional to 128,924 and 276,893

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Solution

The third proportional to 128,924 and 276,893 is: 594,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,924 : 276,893 = 276,893 : x
  2. Step 2: Convert to fraction form
    128,924/276,893 = 276,893/x
  3. Step 3: Cross multiply
    128,924x = 276,893 × 276,893
  4. Step 4: Simplify right side
    128,924x = 76,669,733,449
  5. Step 5: Solve for x
    x = 76,669,733,449/128,924
  6. Step 6: Final answer
    x = 594,689.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.