Home / 396,915.20-547,789.93-235,770.90

Finding the Fourth Proportional to 396,915.20, 547,789.93 and 235,770.90

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Solution

The fourth proportional to 396,915.20, 547,789.93 and 235,770.90 is: 325,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,915.20 : 547,789.93 = 235,770.90 : x
  2. Step 2: Convert to fraction form
    396,915.20/547,789.93 = 235,770.90/x
  3. Step 3: Cross multiply
    396,915.20x = 547,789.93 × 235,770.90
  4. Step 4: Simplify right side
    396,915.20x = 129,152,922,163.40
  5. Step 5: Solve for x
    x = 129,152,922,163.40/396,915.20
  6. Step 6: Final answer
    x = 325,391.73

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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.