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Finding the Fourth Proportional to 359.83, 496.61 and 219.92

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Solution

The fourth proportional to 359.83, 496.61 and 219.92 is: 303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.83 : 496.61 = 219.92 : x
  2. Step 2: Convert to fraction form
    359.83/496.61 = 219.92/x
  3. Step 3: Cross multiply
    359.83x = 496.61 × 219.92
  4. Step 4: Simplify right side
    359.83x = 109,211.09
  5. Step 5: Solve for x
    x = 109,211.09/359.83
  6. Step 6: Final answer
    x = 303.51

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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.