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Finding the Fourth Proportional to 359.32, 538.26 and 222.64

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Solution

The fourth proportional to 359.32, 538.26 and 222.64 is: 333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.32 : 538.26 = 222.64 : x
  2. Step 2: Convert to fraction form
    359.32/538.26 = 222.64/x
  3. Step 3: Cross multiply
    359.32x = 538.26 × 222.64
  4. Step 4: Simplify right side
    359.32x = 119,838.21
  5. Step 5: Solve for x
    x = 119,838.21/359.32
  6. Step 6: Final answer
    x = 333.51

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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.