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Finding the Third Proportional to 147,619 and 221,390

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Solution

The third proportional to 147,619 and 221,390 is: 332,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619 : 221,390 = 221,390 : x
  2. Step 2: Convert to fraction form
    147,619/221,390 = 221,390/x
  3. Step 3: Cross multiply
    147,619x = 221,390 × 221,390
  4. Step 4: Simplify right side
    147,619x = 49,013,532,100
  5. Step 5: Solve for x
    x = 49,013,532,100/147,619
  6. Step 6: Final answer
    x = 332,027.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.