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Finding the Fourth Proportional to 371.89, 513.14 and 240.87

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Solution

The fourth proportional to 371.89, 513.14 and 240.87 is: 332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.89 : 513.14 = 240.87 : x
  2. Step 2: Convert to fraction form
    371.89/513.14 = 240.87/x
  3. Step 3: Cross multiply
    371.89x = 513.14 × 240.87
  4. Step 4: Simplify right side
    371.89x = 123,600.75
  5. Step 5: Solve for x
    x = 123,600.75/371.89
  6. Step 6: Final answer
    x = 332.36

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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.