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Finding the Fourth Proportional to 359.56, 538.26 and 344.80

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Solution

The fourth proportional to 359.56, 538.26 and 344.80 is: 516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.56 : 538.26 = 344.80 : x
  2. Step 2: Convert to fraction form
    359.56/538.26 = 344.80/x
  3. Step 3: Cross multiply
    359.56x = 538.26 × 344.80
  4. Step 4: Simplify right side
    359.56x = 185,592.05
  5. Step 5: Solve for x
    x = 185,592.05/359.56
  6. Step 6: Final answer
    x = 516.16

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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.