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Finding the Third Proportional to 128,796.75 and 279,044.44

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Solution

The third proportional to 128,796.75 and 279,044.44 is: 604,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,796.75 : 279,044.44 = 279,044.44 : x
  2. Step 2: Convert to fraction form
    128,796.75/279,044.44 = 279,044.44/x
  3. Step 3: Cross multiply
    128,796.75x = 279,044.44 × 279,044.44
  4. Step 4: Simplify right side
    128,796.75x = 77,865,798,099.69
  5. Step 5: Solve for x
    x = 77,865,798,099.69/128,796.75
  6. Step 6: Final answer
    x = 604,563.38

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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.