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Finding the Fourth Proportional to 277.34, 415.38 and 195.92

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Solution

The fourth proportional to 277.34, 415.38 and 195.92 is: 293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.34 : 415.38 = 195.92 : x
  2. Step 2: Convert to fraction form
    277.34/415.38 = 195.92/x
  3. Step 3: Cross multiply
    277.34x = 415.38 × 195.92
  4. Step 4: Simplify right side
    277.34x = 81,381.25
  5. Step 5: Solve for x
    x = 81,381.25/277.34
  6. Step 6: Final answer
    x = 293.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.