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Finding the Third Proportional to 78,529 and 170,441

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Solution

The third proportional to 78,529 and 170,441 is: 369,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,529 : 170,441 = 170,441 : x
  2. Step 2: Convert to fraction form
    78,529/170,441 = 170,441/x
  3. Step 3: Cross multiply
    78,529x = 170,441 × 170,441
  4. Step 4: Simplify right side
    78,529x = 29,050,134,481
  5. Step 5: Solve for x
    x = 29,050,134,481/78,529
  6. Step 6: Final answer
    x = 369,928.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.