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Finding the Third Proportional to 144,285 and 319,707

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Solution

The third proportional to 144,285 and 319,707 is: 708,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,285 : 319,707 = 319,707 : x
  2. Step 2: Convert to fraction form
    144,285/319,707 = 319,707/x
  3. Step 3: Cross multiply
    144,285x = 319,707 × 319,707
  4. Step 4: Simplify right side
    144,285x = 102,212,565,849
  5. Step 5: Solve for x
    x = 102,212,565,849/144,285
  6. Step 6: Final answer
    x = 708,407.43

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.