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Finding the Fourth Proportional to 359.39, 495.84 and 228.38

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Solution

The fourth proportional to 359.39, 495.84 and 228.38 is: 315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.39 : 495.84 = 228.38 : x
  2. Step 2: Convert to fraction form
    359.39/495.84 = 228.38/x
  3. Step 3: Cross multiply
    359.39x = 495.84 × 228.38
  4. Step 4: Simplify right side
    359.39x = 113,239.94
  5. Step 5: Solve for x
    x = 113,239.94/359.39
  6. Step 6: Final answer
    x = 315.09

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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.