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Finding the Third Proportional to 159,858 and 238,689

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Solution

The third proportional to 159,858 and 238,689 is: 356,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858 : 238,689 = 238,689 : x
  2. Step 2: Convert to fraction form
    159,858/238,689 = 238,689/x
  3. Step 3: Cross multiply
    159,858x = 238,689 × 238,689
  4. Step 4: Simplify right side
    159,858x = 56,972,438,721
  5. Step 5: Solve for x
    x = 56,972,438,721/159,858
  6. Step 6: Final answer
    x = 356,394.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.