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Finding the Third Proportional to 66,363.75 and 143,329.13

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Solution

The third proportional to 66,363.75 and 143,329.13 is: 309,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,363.75 : 143,329.13 = 143,329.13 : x
  2. Step 2: Convert to fraction form
    66,363.75/143,329.13 = 143,329.13/x
  3. Step 3: Cross multiply
    66,363.75x = 143,329.13 × 143,329.13
  4. Step 4: Simplify right side
    66,363.75x = 20,543,238,073.27
  5. Step 5: Solve for x
    x = 20,543,238,073.27/66,363.75
  6. Step 6: Final answer
    x = 309,555.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.