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Finding the Third Proportional to 156,726 and 220,223.25

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Solution

The third proportional to 156,726 and 220,223.25 is: 309,446.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,726 : 220,223.25 = 220,223.25 : x
  2. Step 2: Convert to fraction form
    156,726/220,223.25 = 220,223.25/x
  3. Step 3: Cross multiply
    156,726x = 220,223.25 × 220,223.25
  4. Step 4: Simplify right side
    156,726x = 48,498,279,840.56
  5. Step 5: Solve for x
    x = 48,498,279,840.56/156,726
  6. Step 6: Final answer
    x = 309,446.29

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.