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Finding the Third Proportional to 149,719 and 220,197

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Solution

The third proportional to 149,719 and 220,197 is: 323,851.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,719 : 220,197 = 220,197 : x
  2. Step 2: Convert to fraction form
    149,719/220,197 = 220,197/x
  3. Step 3: Cross multiply
    149,719x = 220,197 × 220,197
  4. Step 4: Simplify right side
    149,719x = 48,486,718,809
  5. Step 5: Solve for x
    x = 48,486,718,809/149,719
  6. Step 6: Final answer
    x = 323,851.47

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.