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Finding the Third Proportional to 64,048 and 140,220

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Solution

The third proportional to 64,048 and 140,220 is: 306,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,048 : 140,220 = 140,220 : x
  2. Step 2: Convert to fraction form
    64,048/140,220 = 140,220/x
  3. Step 3: Cross multiply
    64,048x = 140,220 × 140,220
  4. Step 4: Simplify right side
    64,048x = 19,661,648,400
  5. Step 5: Solve for x
    x = 19,661,648,400/64,048
  6. Step 6: Final answer
    x = 306,983.02

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.