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Finding the Third Proportional to 159,859 and 238,690

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Solution

The third proportional to 159,859 and 238,690 is: 356,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,859 : 238,690 = 238,690 : x
  2. Step 2: Convert to fraction form
    159,859/238,690 = 238,690/x
  3. Step 3: Cross multiply
    159,859x = 238,690 × 238,690
  4. Step 4: Simplify right side
    159,859x = 56,972,916,100
  5. Step 5: Solve for x
    x = 56,972,916,100/159,859
  6. Step 6: Final answer
    x = 356,394.80

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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.