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Finding the Fourth Proportional to 330.88, 494.95 and 303.25

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Solution

The fourth proportional to 330.88, 494.95 and 303.25 is: 453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.88 : 494.95 = 303.25 : x
  2. Step 2: Convert to fraction form
    330.88/494.95 = 303.25/x
  3. Step 3: Cross multiply
    330.88x = 494.95 × 303.25
  4. Step 4: Simplify right side
    330.88x = 150,093.59
  5. Step 5: Solve for x
    x = 150,093.59/330.88
  6. Step 6: Final answer
    x = 453.62

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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.