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Finding the Fourth Proportional to 330.76, 456.53 and 196.28

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Solution

The fourth proportional to 330.76, 456.53 and 196.28 is: 270.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.76 : 456.53 = 196.28 : x
  2. Step 2: Convert to fraction form
    330.76/456.53 = 196.28/x
  3. Step 3: Cross multiply
    330.76x = 456.53 × 196.28
  4. Step 4: Simplify right side
    330.76x = 89,610.10
  5. Step 5: Solve for x
    x = 89,610.10/330.76
  6. Step 6: Final answer
    x = 270.92

Related Problems

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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.