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Finding the Fourth Proportional to 206,016.58, 309,021.99 and 124,982.91

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Solution

The fourth proportional to 206,016.58, 309,021.99 and 124,982.91 is: 187,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,016.58 : 309,021.99 = 124,982.91 : x
  2. Step 2: Convert to fraction form
    206,016.58/309,021.99 = 124,982.91/x
  3. Step 3: Cross multiply
    206,016.58x = 309,021.99 × 124,982.91
  4. Step 4: Simplify right side
    206,016.58x = 38,622,468,658.85
  5. Step 5: Solve for x
    x = 38,622,468,658.85/206,016.58
  6. Step 6: Final answer
    x = 187,472.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.