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Finding the Fourth Proportional to 359.71, 539.21 and 197.51

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Solution

The fourth proportional to 359.71, 539.21 and 197.51 is: 296.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.71 : 539.21 = 197.51 : x
  2. Step 2: Convert to fraction form
    359.71/539.21 = 197.51/x
  3. Step 3: Cross multiply
    359.71x = 539.21 × 197.51
  4. Step 4: Simplify right side
    359.71x = 106,496.05
  5. Step 5: Solve for x
    x = 106,496.05/359.71
  6. Step 6: Final answer
    x = 296.06

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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.