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Finding the Fourth Proportional to 605.38, 835.50 and 372.37

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Solution

The fourth proportional to 605.38, 835.50 and 372.37 is: 513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.38 : 835.50 = 372.37 : x
  2. Step 2: Convert to fraction form
    605.38/835.50 = 372.37/x
  3. Step 3: Cross multiply
    605.38x = 835.50 × 372.37
  4. Step 4: Simplify right side
    605.38x = 311,115.14
  5. Step 5: Solve for x
    x = 311,115.14/605.38
  6. Step 6: Final answer
    x = 513.92

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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.