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Finding the Third Proportional to 298,247 and 451,715

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Solution

The third proportional to 298,247 and 451,715 is: 684,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,247 : 451,715 = 451,715 : x
  2. Step 2: Convert to fraction form
    298,247/451,715 = 451,715/x
  3. Step 3: Cross multiply
    298,247x = 451,715 × 451,715
  4. Step 4: Simplify right side
    298,247x = 204,046,441,225
  5. Step 5: Solve for x
    x = 204,046,441,225/298,247
  6. Step 6: Final answer
    x = 684,152.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.