Home / 206,680.26-309,979.50-56,881.86

Finding the Fourth Proportional to 206,680.26, 309,979.50 and 56,881.86

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Solution

The fourth proportional to 206,680.26, 309,979.50 and 56,881.86 is: 85,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,680.26 : 309,979.50 = 56,881.86 : x
  2. Step 2: Convert to fraction form
    206,680.26/309,979.50 = 56,881.86/x
  3. Step 3: Cross multiply
    206,680.26x = 309,979.50 × 56,881.86
  4. Step 4: Simplify right side
    206,680.26x = 17,632,210,521.87
  5. Step 5: Solve for x
    x = 17,632,210,521.87/206,680.26
  6. Step 6: Final answer
    x = 85,311.54

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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.