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Finding the Fourth Proportional to 359.25, 539.26 and 153.92

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Solution

The fourth proportional to 359.25, 539.26 and 153.92 is: 231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.25 : 539.26 = 153.92 : x
  2. Step 2: Convert to fraction form
    359.25/539.26 = 153.92/x
  3. Step 3: Cross multiply
    359.25x = 539.26 × 153.92
  4. Step 4: Simplify right side
    359.25x = 83,002.90
  5. Step 5: Solve for x
    x = 83,002.90/359.25
  6. Step 6: Final answer
    x = 231.04

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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.