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Finding the Third Proportional to 220,105.50 and 350,128.50

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Solution

The third proportional to 220,105.50 and 350,128.50 is: 556,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,105.50 : 350,128.50 = 350,128.50 : x
  2. Step 2: Convert to fraction form
    220,105.50/350,128.50 = 350,128.50/x
  3. Step 3: Cross multiply
    220,105.50x = 350,128.50 × 350,128.50
  4. Step 4: Simplify right side
    220,105.50x = 122,589,966,512.25
  5. Step 5: Solve for x
    x = 122,589,966,512.25/220,105.50
  6. Step 6: Final answer
    x = 556,960.03

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.