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Finding the Fourth Proportional to 396,493.93, 547,162.11 and 215,205.93

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Solution

The fourth proportional to 396,493.93, 547,162.11 and 215,205.93 is: 296,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,493.93 : 547,162.11 = 215,205.93 : x
  2. Step 2: Convert to fraction form
    396,493.93/547,162.11 = 215,205.93/x
  3. Step 3: Cross multiply
    396,493.93x = 547,162.11 × 215,205.93
  4. Step 4: Simplify right side
    396,493.93x = 117,752,529,040.24
  5. Step 5: Solve for x
    x = 117,752,529,040.24/396,493.93
  6. Step 6: Final answer
    x = 296,984.44

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1.5x scale

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.