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Finding the Fourth Proportional to 371.93, 513.26 and 206.13

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Solution

The fourth proportional to 371.93, 513.26 and 206.13 is: 284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.93 : 513.26 = 206.13 : x
  2. Step 2: Convert to fraction form
    371.93/513.26 = 206.13/x
  3. Step 3: Cross multiply
    371.93x = 513.26 × 206.13
  4. Step 4: Simplify right side
    371.93x = 105,797.25
  5. Step 5: Solve for x
    x = 105,797.25/371.93
  6. Step 6: Final answer
    x = 284.46

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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.