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Finding the Fourth Proportional to 330.16, 453.02 and 329.20

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Solution

The fourth proportional to 330.16, 453.02 and 329.20 is: 451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.16 : 453.02 = 329.20 : x
  2. Step 2: Convert to fraction form
    330.16/453.02 = 329.20/x
  3. Step 3: Cross multiply
    330.16x = 453.02 × 329.20
  4. Step 4: Simplify right side
    330.16x = 149,134.18
  5. Step 5: Solve for x
    x = 149,134.18/330.16
  6. Step 6: Final answer
    x = 451.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.