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Finding the Third Proportional to 67,230 and 143,292

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Solution

The third proportional to 67,230 and 143,292 is: 305,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,230 : 143,292 = 143,292 : x
  2. Step 2: Convert to fraction form
    67,230/143,292 = 143,292/x
  3. Step 3: Cross multiply
    67,230x = 143,292 × 143,292
  4. Step 4: Simplify right side
    67,230x = 20,532,597,264
  5. Step 5: Solve for x
    x = 20,532,597,264/67,230
  6. Step 6: Final answer
    x = 305,408.26

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.