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Finding the Fourth Proportional to 371.69, 513.24 and 240.92

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Solution

The fourth proportional to 371.69, 513.24 and 240.92 is: 332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.69 : 513.24 = 240.92 : x
  2. Step 2: Convert to fraction form
    371.69/513.24 = 240.92/x
  3. Step 3: Cross multiply
    371.69x = 513.24 × 240.92
  4. Step 4: Simplify right side
    371.69x = 123,651.12
  5. Step 5: Solve for x
    x = 123,651.12/371.69
  6. Step 6: Final answer
    x = 332.67

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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.