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Finding the Third Proportional to 128,146 and 197,234

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Solution

The third proportional to 128,146 and 197,234 is: 303,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,146 : 197,234 = 197,234 : x
  2. Step 2: Convert to fraction form
    128,146/197,234 = 197,234/x
  3. Step 3: Cross multiply
    128,146x = 197,234 × 197,234
  4. Step 4: Simplify right side
    128,146x = 38,901,250,756
  5. Step 5: Solve for x
    x = 38,901,250,756/128,146
  6. Step 6: Final answer
    x = 303,569.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.