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Finding the Fourth Proportional to 371.40, 511.97 and 292.58

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Solution

The fourth proportional to 371.40, 511.97 and 292.58 is: 403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.40 : 511.97 = 292.58 : x
  2. Step 2: Convert to fraction form
    371.40/511.97 = 292.58/x
  3. Step 3: Cross multiply
    371.40x = 511.97 × 292.58
  4. Step 4: Simplify right side
    371.40x = 149,791.73
  5. Step 5: Solve for x
    x = 149,791.73/371.40
  6. Step 6: Final answer
    x = 403.31

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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.