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Finding the Third Proportional to 117,320 and 159,399

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Solution

The third proportional to 117,320 and 159,399 is: 216,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,320 : 159,399 = 159,399 : x
  2. Step 2: Convert to fraction form
    117,320/159,399 = 159,399/x
  3. Step 3: Cross multiply
    117,320x = 159,399 × 159,399
  4. Step 4: Simplify right side
    117,320x = 25,408,041,201
  5. Step 5: Solve for x
    x = 25,408,041,201/117,320
  6. Step 6: Final answer
    x = 216,570.42

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.