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Finding the Third Proportional to 215,871.75 and 301,951.13

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Solution

The third proportional to 215,871.75 and 301,951.13 is: 422,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,871.75 : 301,951.13 = 301,951.13 : x
  2. Step 2: Convert to fraction form
    215,871.75/301,951.13 = 301,951.13/x
  3. Step 3: Cross multiply
    215,871.75x = 301,951.13 × 301,951.13
  4. Step 4: Simplify right side
    215,871.75x = 91,174,481,888.77
  5. Step 5: Solve for x
    x = 91,174,481,888.77/215,871.75
  6. Step 6: Final answer
    x = 422,354.86

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.