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Finding the Fourth Proportional to 276.02, 414.12 and 131.84

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Solution

The fourth proportional to 276.02, 414.12 and 131.84 is: 197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.02 : 414.12 = 131.84 : x
  2. Step 2: Convert to fraction form
    276.02/414.12 = 131.84/x
  3. Step 3: Cross multiply
    276.02x = 414.12 × 131.84
  4. Step 4: Simplify right side
    276.02x = 54,597.58
  5. Step 5: Solve for x
    x = 54,597.58/276.02
  6. Step 6: Final answer
    x = 197.80

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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.