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Finding the Third Proportional to 64,984 and 139,637

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Solution

The third proportional to 64,984 and 139,637 is: 300,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984 : 139,637 = 139,637 : x
  2. Step 2: Convert to fraction form
    64,984/139,637 = 139,637/x
  3. Step 3: Cross multiply
    64,984x = 139,637 × 139,637
  4. Step 4: Simplify right side
    64,984x = 19,498,491,769
  5. Step 5: Solve for x
    x = 19,498,491,769/64,984
  6. Step 6: Final answer
    x = 300,050.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.