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Finding the Third Proportional to 159,472 and 343,520

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Solution

The third proportional to 159,472 and 343,520 is: 739,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,472 : 343,520 = 343,520 : x
  2. Step 2: Convert to fraction form
    159,472/343,520 = 343,520/x
  3. Step 3: Cross multiply
    159,472x = 343,520 × 343,520
  4. Step 4: Simplify right side
    159,472x = 118,005,990,400
  5. Step 5: Solve for x
    x = 118,005,990,400/159,472
  6. Step 6: Final answer
    x = 739,979.37

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.