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Finding the Fourth Proportional to 330.90, 496.44 and 114.54

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Solution

The fourth proportional to 330.90, 496.44 and 114.54 is: 171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.90 : 496.44 = 114.54 : x
  2. Step 2: Convert to fraction form
    330.90/496.44 = 114.54/x
  3. Step 3: Cross multiply
    330.90x = 496.44 × 114.54
  4. Step 4: Simplify right side
    330.90x = 56,862.24
  5. Step 5: Solve for x
    x = 56,862.24/330.90
  6. Step 6: Final answer
    x = 171.84

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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.