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Finding the Third Proportional to 90,718 and 192,236

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Solution

The third proportional to 90,718 and 192,236 is: 407,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718 : 192,236 = 192,236 : x
  2. Step 2: Convert to fraction form
    90,718/192,236 = 192,236/x
  3. Step 3: Cross multiply
    90,718x = 192,236 × 192,236
  4. Step 4: Simplify right side
    90,718x = 36,954,679,696
  5. Step 5: Solve for x
    x = 36,954,679,696/90,718
  6. Step 6: Final answer
    x = 407,357.74

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.