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Finding the Third Proportional to 149,726 and 220,207

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Solution

The third proportional to 149,726 and 220,207 is: 323,865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,726 : 220,207 = 220,207 : x
  2. Step 2: Convert to fraction form
    149,726/220,207 = 220,207/x
  3. Step 3: Cross multiply
    149,726x = 220,207 × 220,207
  4. Step 4: Simplify right side
    149,726x = 48,491,122,849
  5. Step 5: Solve for x
    x = 48,491,122,849/149,726
  6. Step 6: Final answer
    x = 323,865.75

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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.