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Finding the Fourth Proportional to 372.04, 513.25 and 261.59

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Solution

The fourth proportional to 372.04, 513.25 and 261.59 is: 360.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.04 : 513.25 = 261.59 : x
  2. Step 2: Convert to fraction form
    372.04/513.25 = 261.59/x
  3. Step 3: Cross multiply
    372.04x = 513.25 × 261.59
  4. Step 4: Simplify right side
    372.04x = 134,257.85
  5. Step 5: Solve for x
    x = 134,257.85/372.04
  6. Step 6: Final answer
    x = 360.87

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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.