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Finding the Third Proportional to 140,478.75 and 220,131

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Solution

The third proportional to 140,478.75 and 220,131 is: 344,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,478.75 : 220,131 = 220,131 : x
  2. Step 2: Convert to fraction form
    140,478.75/220,131 = 220,131/x
  3. Step 3: Cross multiply
    140,478.75x = 220,131 × 220,131
  4. Step 4: Simplify right side
    140,478.75x = 48,457,657,161
  5. Step 5: Solve for x
    x = 48,457,657,161/140,478.75
  6. Step 6: Final answer
    x = 344,946.53

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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.