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Finding the Fourth Proportional to 359.81, 539.60 and 229.63

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Solution

The fourth proportional to 359.81, 539.60 and 229.63 is: 344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.81 : 539.60 = 229.63 : x
  2. Step 2: Convert to fraction form
    359.81/539.60 = 229.63/x
  3. Step 3: Cross multiply
    359.81x = 539.60 × 229.63
  4. Step 4: Simplify right side
    359.81x = 123,905.65
  5. Step 5: Solve for x
    x = 123,905.65/359.81
  6. Step 6: Final answer
    x = 344.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.