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Finding the Fourth Proportional to 396,758.95, 595,160.93 and 126,910.79

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Solution

The fourth proportional to 396,758.95, 595,160.93 and 126,910.79 is: 190,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,758.95 : 595,160.93 = 126,910.79 : x
  2. Step 2: Convert to fraction form
    396,758.95/595,160.93 = 126,910.79/x
  3. Step 3: Cross multiply
    396,758.95x = 595,160.93 × 126,910.79
  4. Step 4: Simplify right side
    396,758.95x = 75,532,343,168.88
  5. Step 5: Solve for x
    x = 75,532,343,168.88/396,758.95
  6. Step 6: Final answer
    x = 190,373.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.