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Finding the Third Proportional to 66,667 and 140,827

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Solution

The third proportional to 66,667 and 140,827 is: 297,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667 : 140,827 = 140,827 : x
  2. Step 2: Convert to fraction form
    66,667/140,827 = 140,827/x
  3. Step 3: Cross multiply
    66,667x = 140,827 × 140,827
  4. Step 4: Simplify right side
    66,667x = 19,832,243,929
  5. Step 5: Solve for x
    x = 19,832,243,929/66,667
  6. Step 6: Final answer
    x = 297,482.17

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.