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Finding the Third Proportional to 68,750 and 145,834

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Solution

The third proportional to 68,750 and 145,834 is: 309,346.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,750 : 145,834 = 145,834 : x
  2. Step 2: Convert to fraction form
    68,750/145,834 = 145,834/x
  3. Step 3: Cross multiply
    68,750x = 145,834 × 145,834
  4. Step 4: Simplify right side
    68,750x = 21,267,555,556
  5. Step 5: Solve for x
    x = 21,267,555,556/68,750
  6. Step 6: Final answer
    x = 309,346.26

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.