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Finding the Third Proportional to 69,486 and 143,736

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Solution

The third proportional to 69,486 and 143,736 is: 297,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,486 : 143,736 = 143,736 : x
  2. Step 2: Convert to fraction form
    69,486/143,736 = 143,736/x
  3. Step 3: Cross multiply
    69,486x = 143,736 × 143,736
  4. Step 4: Simplify right side
    69,486x = 20,660,037,696
  5. Step 5: Solve for x
    x = 20,660,037,696/69,486
  6. Step 6: Final answer
    x = 297,326.62

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.