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Finding the Third Proportional to 274,155 and 408,958.50

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Solution

The third proportional to 274,155 and 408,958.50 is: 610,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,155 : 408,958.50 = 408,958.50 : x
  2. Step 2: Convert to fraction form
    274,155/408,958.50 = 408,958.50/x
  3. Step 3: Cross multiply
    274,155x = 408,958.50 × 408,958.50
  4. Step 4: Simplify right side
    274,155x = 167,247,054,722.25
  5. Step 5: Solve for x
    x = 167,247,054,722.25/274,155
  6. Step 6: Final answer
    x = 610,045.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.