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Finding the Fourth Proportional to 331.04, 450.71 and 330.01

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Solution

The fourth proportional to 331.04, 450.71 and 330.01 is: 449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.04 : 450.71 = 330.01 : x
  2. Step 2: Convert to fraction form
    331.04/450.71 = 330.01/x
  3. Step 3: Cross multiply
    331.04x = 450.71 × 330.01
  4. Step 4: Simplify right side
    331.04x = 148,738.81
  5. Step 5: Solve for x
    x = 148,738.81/331.04
  6. Step 6: Final answer
    x = 449.31

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.