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Finding the Fourth Proportional to 371.94, 512.97 and 247.65

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Solution

The fourth proportional to 371.94, 512.97 and 247.65 is: 341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.94 : 512.97 = 247.65 : x
  2. Step 2: Convert to fraction form
    371.94/512.97 = 247.65/x
  3. Step 3: Cross multiply
    371.94x = 512.97 × 247.65
  4. Step 4: Simplify right side
    371.94x = 127,037.02
  5. Step 5: Solve for x
    x = 127,037.02/371.94
  6. Step 6: Final answer
    x = 341.55

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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.