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Finding the Third Proportional to 159,220 and 335,720

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Solution

The third proportional to 159,220 and 335,720 is: 707,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,220 : 335,720 = 335,720 : x
  2. Step 2: Convert to fraction form
    159,220/335,720 = 335,720/x
  3. Step 3: Cross multiply
    159,220x = 335,720 × 335,720
  4. Step 4: Simplify right side
    159,220x = 112,707,918,400
  5. Step 5: Solve for x
    x = 112,707,918,400/159,220
  6. Step 6: Final answer
    x = 707,875.38

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.