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Finding the Third Proportional to 130,008.75 and 206,857.50

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Solution

The third proportional to 130,008.75 and 206,857.50 is: 329,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,008.75 : 206,857.50 = 206,857.50 : x
  2. Step 2: Convert to fraction form
    130,008.75/206,857.50 = 206,857.50/x
  3. Step 3: Cross multiply
    130,008.75x = 206,857.50 × 206,857.50
  4. Step 4: Simplify right side
    130,008.75x = 42,790,025,306.25
  5. Step 5: Solve for x
    x = 42,790,025,306.25/130,008.75
  6. Step 6: Final answer
    x = 329,131.89

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.