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Finding the Third Proportional to 133,387.69 and 203,469.19

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Solution

The third proportional to 133,387.69 and 203,469.19 is: 310,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.69 : 203,469.19 = 203,469.19 : x
  2. Step 2: Convert to fraction form
    133,387.69/203,469.19 = 203,469.19/x
  3. Step 3: Cross multiply
    133,387.69x = 203,469.19 × 203,469.19
  4. Step 4: Simplify right side
    133,387.69x = 41,399,710,261.91
  5. Step 5: Solve for x
    x = 41,399,710,261.91/133,387.69
  6. Step 6: Final answer
    x = 310,371.30

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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.