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Finding the Third Proportional to 140,521.50 and 220,198.50

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Solution

The third proportional to 140,521.50 and 220,198.50 is: 345,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,521.50 : 220,198.50 = 220,198.50 : x
  2. Step 2: Convert to fraction form
    140,521.50/220,198.50 = 220,198.50/x
  3. Step 3: Cross multiply
    140,521.50x = 220,198.50 × 220,198.50
  4. Step 4: Simplify right side
    140,521.50x = 48,487,379,402.25
  5. Step 5: Solve for x
    x = 48,487,379,402.25/140,521.50
  6. Step 6: Final answer
    x = 345,053.10

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.