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Finding the Third Proportional to 34,515 and 70,479

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Solution

The third proportional to 34,515 and 70,479 is: 143,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515 : 70,479 = 70,479 : x
  2. Step 2: Convert to fraction form
    34,515/70,479 = 70,479/x
  3. Step 3: Cross multiply
    34,515x = 70,479 × 70,479
  4. Step 4: Simplify right side
    34,515x = 4,967,289,441
  5. Step 5: Solve for x
    x = 4,967,289,441/34,515
  6. Step 6: Final answer
    x = 143,916.83

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.