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Finding the Third Proportional to 73,109 and 159,430

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Solution

The third proportional to 73,109 and 159,430 is: 347,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,109 : 159,430 = 159,430 : x
  2. Step 2: Convert to fraction form
    73,109/159,430 = 159,430/x
  3. Step 3: Cross multiply
    73,109x = 159,430 × 159,430
  4. Step 4: Simplify right side
    73,109x = 25,417,924,900
  5. Step 5: Solve for x
    x = 25,417,924,900/73,109
  6. Step 6: Final answer
    x = 347,671.63

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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.