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Finding the Fourth Proportional to 344.68, 513.72 and 329.42

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Solution

The fourth proportional to 344.68, 513.72 and 329.42 is: 490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.68 : 513.72 = 329.42 : x
  2. Step 2: Convert to fraction form
    344.68/513.72 = 329.42/x
  3. Step 3: Cross multiply
    344.68x = 513.72 × 329.42
  4. Step 4: Simplify right side
    344.68x = 169,227.11
  5. Step 5: Solve for x
    x = 169,227.11/344.68
  6. Step 6: Final answer
    x = 490.97

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.