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Finding the Fourth Proportional to 330.95, 496.67 and 148.46

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Solution

The fourth proportional to 330.95, 496.67 and 148.46 is: 222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.95 : 496.67 = 148.46 : x
  2. Step 2: Convert to fraction form
    330.95/496.67 = 148.46/x
  3. Step 3: Cross multiply
    330.95x = 496.67 × 148.46
  4. Step 4: Simplify right side
    330.95x = 73,732.40
  5. Step 5: Solve for x
    x = 73,732.40/330.95
  6. Step 6: Final answer
    x = 222.79

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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.