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Finding the Fourth Proportional to 396.99, 594.92 and 292.05

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Solution

The fourth proportional to 396.99, 594.92 and 292.05 is: 437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.99 : 594.92 = 292.05 : x
  2. Step 2: Convert to fraction form
    396.99/594.92 = 292.05/x
  3. Step 3: Cross multiply
    396.99x = 594.92 × 292.05
  4. Step 4: Simplify right side
    396.99x = 173,744.93
  5. Step 5: Solve for x
    x = 173,744.93/396.99
  6. Step 6: Final answer
    x = 437.66

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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.