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Finding the Third Proportional to 65,904 and 143,739

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Solution

The third proportional to 65,904 and 143,739 is: 313,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904 : 143,739 = 143,739 : x
  2. Step 2: Convert to fraction form
    65,904/143,739 = 143,739/x
  3. Step 3: Cross multiply
    65,904x = 143,739 × 143,739
  4. Step 4: Simplify right side
    65,904x = 20,660,900,121
  5. Step 5: Solve for x
    x = 20,660,900,121/65,904
  6. Step 6: Final answer
    x = 313,499.94

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.