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Finding the Third Proportional to 76,074.50 and 154,453

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Solution

The third proportional to 76,074.50 and 154,453 is: 313,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,074.50 : 154,453 = 154,453 : x
  2. Step 2: Convert to fraction form
    76,074.50/154,453 = 154,453/x
  3. Step 3: Cross multiply
    76,074.50x = 154,453 × 154,453
  4. Step 4: Simplify right side
    76,074.50x = 23,855,729,209
  5. Step 5: Solve for x
    x = 23,855,729,209/76,074.50
  6. Step 6: Final answer
    x = 313,583.78

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.