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Finding the Fourth Proportional to 396.66, 594.50 and 348.66

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Solution

The fourth proportional to 396.66, 594.50 and 348.66 is: 522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396.66 : 594.50 = 348.66 : x
  2. Step 2: Convert to fraction form
    396.66/594.50 = 348.66/x
  3. Step 3: Cross multiply
    396.66x = 594.50 × 348.66
  4. Step 4: Simplify right side
    396.66x = 207,278.37
  5. Step 5: Solve for x
    x = 207,278.37/396.66
  6. Step 6: Final answer
    x = 522.56

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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.