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Finding the Fourth Proportional to 261.54, 360.94 and 195.92

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Solution

The fourth proportional to 261.54, 360.94 and 195.92 is: 270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.54 : 360.94 = 195.92 : x
  2. Step 2: Convert to fraction form
    261.54/360.94 = 195.92/x
  3. Step 3: Cross multiply
    261.54x = 360.94 × 195.92
  4. Step 4: Simplify right side
    261.54x = 70,715.36
  5. Step 5: Solve for x
    x = 70,715.36/261.54
  6. Step 6: Final answer
    x = 270.38

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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.