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Finding the Fourth Proportional to 359.59, 496.16 and 228.79

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Solution

The fourth proportional to 359.59, 496.16 and 228.79 is: 315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.59 : 496.16 = 228.79 : x
  2. Step 2: Convert to fraction form
    359.59/496.16 = 228.79/x
  3. Step 3: Cross multiply
    359.59x = 496.16 × 228.79
  4. Step 4: Simplify right side
    359.59x = 113,515.30
  5. Step 5: Solve for x
    x = 113,515.30/359.59
  6. Step 6: Final answer
    x = 315.68

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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.