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Finding the Third Proportional to 64,604 and 139,392

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Solution

The third proportional to 64,604 and 139,392 is: 300,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,604 : 139,392 = 139,392 : x
  2. Step 2: Convert to fraction form
    64,604/139,392 = 139,392/x
  3. Step 3: Cross multiply
    64,604x = 139,392 × 139,392
  4. Step 4: Simplify right side
    64,604x = 19,430,129,664
  5. Step 5: Solve for x
    x = 19,430,129,664/64,604
  6. Step 6: Final answer
    x = 300,757.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.