Home / 204,558.24-306,879.20-86,229.60

Finding the Fourth Proportional to 204,558.24, 306,879.20 and 86,229.60

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Solution

The fourth proportional to 204,558.24, 306,879.20 and 86,229.60 is: 129,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,558.24 : 306,879.20 = 86,229.60 : x
  2. Step 2: Convert to fraction form
    204,558.24/306,879.20 = 86,229.60/x
  3. Step 3: Cross multiply
    204,558.24x = 306,879.20 × 86,229.60
  4. Step 4: Simplify right side
    204,558.24x = 26,462,070,664.32
  5. Step 5: Solve for x
    x = 26,462,070,664.32/204,558.24
  6. Step 6: Final answer
    x = 129,362.04

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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.