Home / 421,286.20-581,375.12-230,299.56

Finding the Fourth Proportional to 421,286.20, 581,375.12 and 230,299.56

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Solution

The fourth proportional to 421,286.20, 581,375.12 and 230,299.56 is: 317,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,286.20 : 581,375.12 = 230,299.56 : x
  2. Step 2: Convert to fraction form
    421,286.20/581,375.12 = 230,299.56/x
  3. Step 3: Cross multiply
    421,286.20x = 581,375.12 × 230,299.56
  4. Step 4: Simplify right side
    421,286.20x = 133,890,434,330.95
  5. Step 5: Solve for x
    x = 133,890,434,330.95/421,286.20
  6. Step 6: Final answer
    x = 317,813.48

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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.