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Finding the Third Proportional to 165,821.50 and 355,299.50

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Solution

The third proportional to 165,821.50 and 355,299.50 is: 761,286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,821.50 : 355,299.50 = 355,299.50 : x
  2. Step 2: Convert to fraction form
    165,821.50/355,299.50 = 355,299.50/x
  3. Step 3: Cross multiply
    165,821.50x = 355,299.50 × 355,299.50
  4. Step 4: Simplify right side
    165,821.50x = 126,237,734,700.25
  5. Step 5: Solve for x
    x = 126,237,734,700.25/165,821.50
  6. Step 6: Final answer
    x = 761,286.89

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.