Home / 206,939.26-310,405.76-57,176.20

Finding the Fourth Proportional to 206,939.26, 310,405.76 and 57,176.20

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Solution

The fourth proportional to 206,939.26, 310,405.76 and 57,176.20 is: 85,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,939.26 : 310,405.76 = 57,176.20 : x
  2. Step 2: Convert to fraction form
    206,939.26/310,405.76 = 57,176.20/x
  3. Step 3: Cross multiply
    206,939.26x = 310,405.76 × 57,176.20
  4. Step 4: Simplify right side
    206,939.26x = 17,747,821,814.91
  5. Step 5: Solve for x
    x = 17,747,821,814.91/206,939.26
  6. Step 6: Final answer
    x = 85,763.44

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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.