Home / 356,012.15-491,286.87-203,046.75

Finding the Fourth Proportional to 356,012.15, 491,286.87 and 203,046.75

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Solution

The fourth proportional to 356,012.15, 491,286.87 and 203,046.75 is: 280,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,012.15 : 491,286.87 = 203,046.75 : x
  2. Step 2: Convert to fraction form
    356,012.15/491,286.87 = 203,046.75/x
  3. Step 3: Cross multiply
    356,012.15x = 491,286.87 × 203,046.75
  4. Step 4: Simplify right side
    356,012.15x = 99,754,202,271.17
  5. Step 5: Solve for x
    x = 99,754,202,271.17/356,012.15
  6. Step 6: Final answer
    x = 280,198.87

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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.