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Finding the Fourth Proportional to 363.91, 501.97 and 339.61

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Solution

The fourth proportional to 363.91, 501.97 and 339.61 is: 468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.91 : 501.97 = 339.61 : x
  2. Step 2: Convert to fraction form
    363.91/501.97 = 339.61/x
  3. Step 3: Cross multiply
    363.91x = 501.97 × 339.61
  4. Step 4: Simplify right side
    363.91x = 170,474.03
  5. Step 5: Solve for x
    x = 170,474.03/363.91
  6. Step 6: Final answer
    x = 468.45

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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.