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Finding the Fourth Proportional to 359.59, 496.43 and 219.74

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Solution

The fourth proportional to 359.59, 496.43 and 219.74 is: 303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.59 : 496.43 = 219.74 : x
  2. Step 2: Convert to fraction form
    359.59/496.43 = 219.74/x
  3. Step 3: Cross multiply
    359.59x = 496.43 × 219.74
  4. Step 4: Simplify right side
    359.59x = 109,084.17
  5. Step 5: Solve for x
    x = 109,084.17/359.59
  6. Step 6: Final answer
    x = 303.36

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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.