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Finding the Fourth Proportional to 359.91, 493.49 and 324.81

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Solution

The fourth proportional to 359.91, 493.49 and 324.81 is: 445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.91 : 493.49 = 324.81 : x
  2. Step 2: Convert to fraction form
    359.91/493.49 = 324.81/x
  3. Step 3: Cross multiply
    359.91x = 493.49 × 324.81
  4. Step 4: Simplify right side
    359.91x = 160,291.30
  5. Step 5: Solve for x
    x = 160,291.30/359.91
  6. Step 6: Final answer
    x = 445.36

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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.