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Finding the Fourth Proportional to 359.68, 496.44 and 212.32

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Solution

The fourth proportional to 359.68, 496.44 and 212.32 is: 293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.68 : 496.44 = 212.32 : x
  2. Step 2: Convert to fraction form
    359.68/496.44 = 212.32/x
  3. Step 3: Cross multiply
    359.68x = 496.44 × 212.32
  4. Step 4: Simplify right side
    359.68x = 105,404.14
  5. Step 5: Solve for x
    x = 105,404.14/359.68
  6. Step 6: Final answer
    x = 293.05

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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.