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Finding the Fourth Proportional to 359.94, 538.44 and 326.19

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Solution

The fourth proportional to 359.94, 538.44 and 326.19 is: 487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.94 : 538.44 = 326.19 : x
  2. Step 2: Convert to fraction form
    359.94/538.44 = 326.19/x
  3. Step 3: Cross multiply
    359.94x = 538.44 × 326.19
  4. Step 4: Simplify right side
    359.94x = 175,633.74
  5. Step 5: Solve for x
    x = 175,633.74/359.94
  6. Step 6: Final answer
    x = 487.95

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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.