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Finding the Fourth Proportional to 341.91, 515.97 and 324.27

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Solution

The fourth proportional to 341.91, 515.97 and 324.27 is: 489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.91 : 515.97 = 324.27 : x
  2. Step 2: Convert to fraction form
    341.91/515.97 = 324.27/x
  3. Step 3: Cross multiply
    341.91x = 515.97 × 324.27
  4. Step 4: Simplify right side
    341.91x = 167,313.59
  5. Step 5: Solve for x
    x = 167,313.59/341.91
  6. Step 6: Final answer
    x = 489.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.