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Finding the Third Proportional to 64,908 and 140,832

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Solution

The third proportional to 64,908 and 140,832 is: 305,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,908 : 140,832 = 140,832 : x
  2. Step 2: Convert to fraction form
    64,908/140,832 = 140,832/x
  3. Step 3: Cross multiply
    64,908x = 140,832 × 140,832
  4. Step 4: Simplify right side
    64,908x = 19,833,652,224
  5. Step 5: Solve for x
    x = 19,833,652,224/64,908
  6. Step 6: Final answer
    x = 305,565.60

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.