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Finding the Fourth Proportional to 359.63, 539.78 and 164.73

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Solution

The fourth proportional to 359.63, 539.78 and 164.73 is: 247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.63 : 539.78 = 164.73 : x
  2. Step 2: Convert to fraction form
    359.63/539.78 = 164.73/x
  3. Step 3: Cross multiply
    359.63x = 539.78 × 164.73
  4. Step 4: Simplify right side
    359.63x = 88,917.14
  5. Step 5: Solve for x
    x = 88,917.14/359.63
  6. Step 6: Final answer
    x = 247.25

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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.