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Finding the Fourth Proportional to 371.55, 513.29 and 293.39

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Solution

The fourth proportional to 371.55, 513.29 and 293.39 is: 405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.55 : 513.29 = 293.39 : x
  2. Step 2: Convert to fraction form
    371.55/513.29 = 293.39/x
  3. Step 3: Cross multiply
    371.55x = 513.29 × 293.39
  4. Step 4: Simplify right side
    371.55x = 150,592.59
  5. Step 5: Solve for x
    x = 150,592.59/371.55
  6. Step 6: Final answer
    x = 405.31

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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.