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Finding the Third Proportional to 122,812 and 195,290

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Solution

The third proportional to 122,812 and 195,290 is: 310,541.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,812 : 195,290 = 195,290 : x
  2. Step 2: Convert to fraction form
    122,812/195,290 = 195,290/x
  3. Step 3: Cross multiply
    122,812x = 195,290 × 195,290
  4. Step 4: Simplify right side
    122,812x = 38,138,184,100
  5. Step 5: Solve for x
    x = 38,138,184,100/122,812
  6. Step 6: Final answer
    x = 310,541.19

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.