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Finding the Third Proportional to 144,979.88 and 319,393.13

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Solution

The third proportional to 144,979.88 and 319,393.13 is: 703,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,979.88 : 319,393.13 = 319,393.13 : x
  2. Step 2: Convert to fraction form
    144,979.88/319,393.13 = 319,393.13/x
  3. Step 3: Cross multiply
    144,979.88x = 319,393.13 × 319,393.13
  4. Step 4: Simplify right side
    144,979.88x = 102,011,968,297.27
  5. Step 5: Solve for x
    x = 102,011,968,297.27/144,979.88
  6. Step 6: Final answer
    x = 703,628.47

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.