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Finding the Third Proportional to 139,142.75 and 297,961.75

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Solution

The third proportional to 139,142.75 and 297,961.75 is: 638,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,142.75 : 297,961.75 = 297,961.75 : x
  2. Step 2: Convert to fraction form
    139,142.75/297,961.75 = 297,961.75/x
  3. Step 3: Cross multiply
    139,142.75x = 297,961.75 × 297,961.75
  4. Step 4: Simplify right side
    139,142.75x = 88,781,204,463.06
  5. Step 5: Solve for x
    x = 88,781,204,463.06/139,142.75
  6. Step 6: Final answer
    x = 638,058.43

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.