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Finding the Fourth Proportional to 359.68, 496.08 and 249.12

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Solution

The fourth proportional to 359.68, 496.08 and 249.12 is: 343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.68 : 496.08 = 249.12 : x
  2. Step 2: Convert to fraction form
    359.68/496.08 = 249.12/x
  3. Step 3: Cross multiply
    359.68x = 496.08 × 249.12
  4. Step 4: Simplify right side
    359.68x = 123,583.45
  5. Step 5: Solve for x
    x = 123,583.45/359.68
  6. Step 6: Final answer
    x = 343.59

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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.