Home / 204,793.28-307,231.20-86,464.32

Finding the Fourth Proportional to 204,793.28, 307,231.20 and 86,464.32

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Solution

The fourth proportional to 204,793.28, 307,231.20 and 86,464.32 is: 129,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,793.28 : 307,231.20 = 86,464.32 : x
  2. Step 2: Convert to fraction form
    204,793.28/307,231.20 = 86,464.32/x
  3. Step 3: Cross multiply
    204,793.28x = 307,231.20 × 86,464.32
  4. Step 4: Simplify right side
    204,793.28x = 26,564,536,790.78
  5. Step 5: Solve for x
    x = 26,564,536,790.78/204,793.28
  6. Step 6: Final answer
    x = 129,713.91

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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.