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Finding the Third Proportional to 140,500 and 305,938

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Solution

The third proportional to 140,500 and 305,938 is: 666,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,500 : 305,938 = 305,938 : x
  2. Step 2: Convert to fraction form
    140,500/305,938 = 305,938/x
  3. Step 3: Cross multiply
    140,500x = 305,938 × 305,938
  4. Step 4: Simplify right side
    140,500x = 93,598,059,844
  5. Step 5: Solve for x
    x = 93,598,059,844/140,500
  6. Step 6: Final answer
    x = 666,178.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.