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Finding the Fourth Proportional to 270,610.76, 405,923.44 and 120,815.84

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Solution

The fourth proportional to 270,610.76, 405,923.44 and 120,815.84 is: 181,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,610.76 : 405,923.44 = 120,815.84 : x
  2. Step 2: Convert to fraction form
    270,610.76/405,923.44 = 120,815.84/x
  3. Step 3: Cross multiply
    270,610.76x = 405,923.44 × 120,815.84
  4. Step 4: Simplify right side
    270,610.76x = 49,041,981,379.29
  5. Step 5: Solve for x
    x = 49,041,981,379.29/270,610.76
  6. Step 6: Final answer
    x = 181,227.02

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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.