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Finding the Third Proportional to 126,643.50 and 207,076.50

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Solution

The third proportional to 126,643.50 and 207,076.50 is: 338,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,643.50 : 207,076.50 = 207,076.50 : x
  2. Step 2: Convert to fraction form
    126,643.50/207,076.50 = 207,076.50/x
  3. Step 3: Cross multiply
    126,643.50x = 207,076.50 × 207,076.50
  4. Step 4: Simplify right side
    126,643.50x = 42,880,676,852.25
  5. Step 5: Solve for x
    x = 42,880,676,852.25/126,643.50
  6. Step 6: Final answer
    x = 338,593.59

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.