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Finding the Third Proportional to 156,022.88 and 319,440.38

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Solution

The third proportional to 156,022.88 and 319,440.38 is: 654,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,022.88 : 319,440.38 = 319,440.38 : x
  2. Step 2: Convert to fraction form
    156,022.88/319,440.38 = 319,440.38/x
  3. Step 3: Cross multiply
    156,022.88x = 319,440.38 × 319,440.38
  4. Step 4: Simplify right side
    156,022.88x = 102,042,153,180.14
  5. Step 5: Solve for x
    x = 102,042,153,180.14/156,022.88
  6. Step 6: Final answer
    x = 654,020.46

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.