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Finding the Fourth Proportional to 359.58, 495.39 and 349.50

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Solution

The fourth proportional to 359.58, 495.39 and 349.50 is: 481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.58 : 495.39 = 349.50 : x
  2. Step 2: Convert to fraction form
    359.58/495.39 = 349.50/x
  3. Step 3: Cross multiply
    359.58x = 495.39 × 349.50
  4. Step 4: Simplify right side
    359.58x = 173,138.81
  5. Step 5: Solve for x
    x = 173,138.81/359.58
  6. Step 6: Final answer
    x = 481.50

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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.