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Finding the Third Proportional to 64,739 and 141,247

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Solution

The third proportional to 64,739 and 141,247 is: 308,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,739 : 141,247 = 141,247 : x
  2. Step 2: Convert to fraction form
    64,739/141,247 = 141,247/x
  3. Step 3: Cross multiply
    64,739x = 141,247 × 141,247
  4. Step 4: Simplify right side
    64,739x = 19,950,715,009
  5. Step 5: Solve for x
    x = 19,950,715,009/64,739
  6. Step 6: Final answer
    x = 308,171.50

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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.