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Finding the Third Proportional to 130,909.50 and 200,171.25

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Solution

The third proportional to 130,909.50 and 200,171.25 is: 306,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,909.50 : 200,171.25 = 200,171.25 : x
  2. Step 2: Convert to fraction form
    130,909.50/200,171.25 = 200,171.25/x
  3. Step 3: Cross multiply
    130,909.50x = 200,171.25 × 200,171.25
  4. Step 4: Simplify right side
    130,909.50x = 40,068,529,326.56
  5. Step 5: Solve for x
    x = 40,068,529,326.56/130,909.50
  6. Step 6: Final answer
    x = 306,078.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.