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Finding the Fourth Proportional to 359.77, 496.51 and 202.40

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Solution

The fourth proportional to 359.77, 496.51 and 202.40 is: 279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.77 : 496.51 = 202.40 : x
  2. Step 2: Convert to fraction form
    359.77/496.51 = 202.40/x
  3. Step 3: Cross multiply
    359.77x = 496.51 × 202.40
  4. Step 4: Simplify right side
    359.77x = 100,493.62
  5. Step 5: Solve for x
    x = 100,493.62/359.77
  6. Step 6: Final answer
    x = 279.33

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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.