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Finding the Fourth Proportional to 371.66, 513.09 and 247.73

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Solution

The fourth proportional to 371.66, 513.09 and 247.73 is: 342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.66 : 513.09 = 247.73 : x
  2. Step 2: Convert to fraction form
    371.66/513.09 = 247.73/x
  3. Step 3: Cross multiply
    371.66x = 513.09 × 247.73
  4. Step 4: Simplify right side
    371.66x = 127,105.22
  5. Step 5: Solve for x
    x = 127,105.22/371.66
  6. Step 6: Final answer
    x = 342.00

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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.