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Finding the Fourth Proportional to 359.58, 539.42 and 125.29

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Solution

The fourth proportional to 359.58, 539.42 and 125.29 is: 187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.58 : 539.42 = 125.29 : x
  2. Step 2: Convert to fraction form
    359.58/539.42 = 125.29/x
  3. Step 3: Cross multiply
    359.58x = 539.42 × 125.29
  4. Step 4: Simplify right side
    359.58x = 67,583.93
  5. Step 5: Solve for x
    x = 67,583.93/359.58
  6. Step 6: Final answer
    x = 187.95

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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.