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Finding the Third Proportional to 144,636.75 and 311,474.25

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Solution

The third proportional to 144,636.75 and 311,474.25 is: 670,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,636.75 : 311,474.25 = 311,474.25 : x
  2. Step 2: Convert to fraction form
    144,636.75/311,474.25 = 311,474.25/x
  3. Step 3: Cross multiply
    144,636.75x = 311,474.25 × 311,474.25
  4. Step 4: Simplify right side
    144,636.75x = 97,016,208,413.06
  5. Step 5: Solve for x
    x = 97,016,208,413.06/144,636.75
  6. Step 6: Final answer
    x = 670,757.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.