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Finding the Third Proportional to 122,928 and 185,513

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Solution

The third proportional to 122,928 and 185,513 is: 279,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928 : 185,513 = 185,513 : x
  2. Step 2: Convert to fraction form
    122,928/185,513 = 185,513/x
  3. Step 3: Cross multiply
    122,928x = 185,513 × 185,513
  4. Step 4: Simplify right side
    122,928x = 34,415,073,169
  5. Step 5: Solve for x
    x = 34,415,073,169/122,928
  6. Step 6: Final answer
    x = 279,961.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.