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Finding the Fourth Proportional to 506.29, 698.20 and 329.06

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Solution

The fourth proportional to 506.29, 698.20 and 329.06 is: 453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.29 : 698.20 = 329.06 : x
  2. Step 2: Convert to fraction form
    506.29/698.20 = 329.06/x
  3. Step 3: Cross multiply
    506.29x = 698.20 × 329.06
  4. Step 4: Simplify right side
    506.29x = 229,749.69
  5. Step 5: Solve for x
    x = 229,749.69/506.29
  6. Step 6: Final answer
    x = 453.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.