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Finding the Third Proportional to 65,741 and 143,989

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Solution

The third proportional to 65,741 and 143,989 is: 315,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,741 : 143,989 = 143,989 : x
  2. Step 2: Convert to fraction form
    65,741/143,989 = 143,989/x
  3. Step 3: Cross multiply
    65,741x = 143,989 × 143,989
  4. Step 4: Simplify right side
    65,741x = 20,732,832,121
  5. Step 5: Solve for x
    x = 20,732,832,121/65,741
  6. Step 6: Final answer
    x = 315,371.41

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.