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Finding the Third Proportional to 173,138 and 259,707

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Solution

The third proportional to 173,138 and 259,707 is: 389,560.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,138 : 259,707 = 259,707 : x
  2. Step 2: Convert to fraction form
    173,138/259,707 = 259,707/x
  3. Step 3: Cross multiply
    173,138x = 259,707 × 259,707
  4. Step 4: Simplify right side
    173,138x = 67,447,725,849
  5. Step 5: Solve for x
    x = 67,447,725,849/173,138
  6. Step 6: Final answer
    x = 389,560.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.