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Finding the Fourth Proportional to 359.84, 539.77 and 113.09

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Solution

The fourth proportional to 359.84, 539.77 and 113.09 is: 169.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.84 : 539.77 = 113.09 : x
  2. Step 2: Convert to fraction form
    359.84/539.77 = 113.09/x
  3. Step 3: Cross multiply
    359.84x = 539.77 × 113.09
  4. Step 4: Simplify right side
    359.84x = 61,039.61
  5. Step 5: Solve for x
    x = 61,039.61/359.84
  6. Step 6: Final answer
    x = 169.63

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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.