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Finding the Third Proportional to 164,009.25 and 355,221

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Solution

The third proportional to 164,009.25 and 355,221 is: 769,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,009.25 : 355,221 = 355,221 : x
  2. Step 2: Convert to fraction form
    164,009.25/355,221 = 355,221/x
  3. Step 3: Cross multiply
    164,009.25x = 355,221 × 355,221
  4. Step 4: Simplify right side
    164,009.25x = 126,181,958,841
  5. Step 5: Solve for x
    x = 126,181,958,841/164,009.25
  6. Step 6: Final answer
    x = 769,358.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.