Home / 355,974.11-491,185.23-203,023.42

Finding the Fourth Proportional to 355,974.11, 491,185.23 and 203,023.42

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Solution

The fourth proportional to 355,974.11, 491,185.23 and 203,023.42 is: 280,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,974.11 : 491,185.23 = 203,023.42 : x
  2. Step 2: Convert to fraction form
    355,974.11/491,185.23 = 203,023.42/x
  3. Step 3: Cross multiply
    355,974.11x = 491,185.23 × 203,023.42
  4. Step 4: Simplify right side
    355,974.11x = 99,722,104,179.76
  5. Step 5: Solve for x
    x = 99,722,104,179.76/355,974.11
  6. Step 6: Final answer
    x = 280,138.64

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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.