Home / 206,971.24-310,458.78-82,344.04

Finding the Fourth Proportional to 206,971.24, 310,458.78 and 82,344.04

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Solution

The fourth proportional to 206,971.24, 310,458.78 and 82,344.04 is: 123,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,971.24 : 310,458.78 = 82,344.04 : x
  2. Step 2: Convert to fraction form
    206,971.24/310,458.78 = 82,344.04/x
  3. Step 3: Cross multiply
    206,971.24x = 310,458.78 × 82,344.04
  4. Step 4: Simplify right side
    206,971.24x = 25,564,430,198.67
  5. Step 5: Solve for x
    x = 25,564,430,198.67/206,971.24
  6. Step 6: Final answer
    x = 123,516.82

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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.