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Finding the Fourth Proportional to 373.06, 512.05 and 330.68

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Solution

The fourth proportional to 373.06, 512.05 and 330.68 is: 453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.06 : 512.05 = 330.68 : x
  2. Step 2: Convert to fraction form
    373.06/512.05 = 330.68/x
  3. Step 3: Cross multiply
    373.06x = 512.05 × 330.68
  4. Step 4: Simplify right side
    373.06x = 169,324.69
  5. Step 5: Solve for x
    x = 169,324.69/373.06
  6. Step 6: Final answer
    x = 453.88

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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.