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Finding the Fourth Proportional to 359,879.60, 539,358.60 and 276,359.60

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Solution

The fourth proportional to 359,879.60, 539,358.60 and 276,359.60 is: 414,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,879.60 : 539,358.60 = 276,359.60 : x
  2. Step 2: Convert to fraction form
    359,879.60/539,358.60 = 276,359.60/x
  3. Step 3: Cross multiply
    359,879.60x = 539,358.60 × 276,359.60
  4. Step 4: Simplify right side
    359,879.60x = 149,056,926,952.56
  5. Step 5: Solve for x
    x = 149,056,926,952.56/359,879.60
  6. Step 6: Final answer
    x = 414,185.54

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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.