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Finding the Fourth Proportional to 381,808.80, 526,660.56 and 245,797.92

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Solution

The fourth proportional to 381,808.80, 526,660.56 and 245,797.92 is: 339,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,808.80 : 526,660.56 = 245,797.92 : x
  2. Step 2: Convert to fraction form
    381,808.80/526,660.56 = 245,797.92/x
  3. Step 3: Cross multiply
    381,808.80x = 526,660.56 × 245,797.92
  4. Step 4: Simplify right side
    381,808.80x = 129,452,070,194.04
  5. Step 5: Solve for x
    x = 129,452,070,194.04/381,808.80
  6. Step 6: Final answer
    x = 339,049.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.