Home / 265,844.20-398,766.30-206,861.80

Finding the Fourth Proportional to 265,844.20, 398,766.30 and 206,861.80

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Solution

The fourth proportional to 265,844.20, 398,766.30 and 206,861.80 is: 310,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,844.20 : 398,766.30 = 206,861.80 : x
  2. Step 2: Convert to fraction form
    265,844.20/398,766.30 = 206,861.80/x
  3. Step 3: Cross multiply
    265,844.20x = 398,766.30 × 206,861.80
  4. Step 4: Simplify right side
    265,844.20x = 82,489,514,597.34
  5. Step 5: Solve for x
    x = 82,489,514,597.34/265,844.20
  6. Step 6: Final answer
    x = 310,292.70

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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.