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Finding the Third Proportional to 128,871 and 194,724

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Solution

The third proportional to 128,871 and 194,724 is: 294,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,871 : 194,724 = 194,724 : x
  2. Step 2: Convert to fraction form
    128,871/194,724 = 194,724/x
  3. Step 3: Cross multiply
    128,871x = 194,724 × 194,724
  4. Step 4: Simplify right side
    128,871x = 37,917,436,176
  5. Step 5: Solve for x
    x = 37,917,436,176/128,871
  6. Step 6: Final answer
    x = 294,227.84

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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.