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Finding the Fourth Proportional to 359.60, 496.31 and 226.91

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Solution

The fourth proportional to 359.60, 496.31 and 226.91 is: 313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.60 : 496.31 = 226.91 : x
  2. Step 2: Convert to fraction form
    359.60/496.31 = 226.91/x
  3. Step 3: Cross multiply
    359.60x = 496.31 × 226.91
  4. Step 4: Simplify right side
    359.60x = 112,617.70
  5. Step 5: Solve for x
    x = 112,617.70/359.60
  6. Step 6: Final answer
    x = 313.17

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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.