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Finding the Third Proportional to 144,300 and 319,740

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Solution

The third proportional to 144,300 and 319,740 is: 708,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,300 : 319,740 = 319,740 : x
  2. Step 2: Convert to fraction form
    144,300/319,740 = 319,740/x
  3. Step 3: Cross multiply
    144,300x = 319,740 × 319,740
  4. Step 4: Simplify right side
    144,300x = 102,233,667,600
  5. Step 5: Solve for x
    x = 102,233,667,600/144,300
  6. Step 6: Final answer
    x = 708,480.02

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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.