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Finding the Fourth Proportional to 279,453.69, 419,051.97 and 89,879.04

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Solution

The fourth proportional to 279,453.69, 419,051.97 and 89,879.04 is: 134,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,453.69 : 419,051.97 = 89,879.04 : x
  2. Step 2: Convert to fraction form
    279,453.69/419,051.97 = 89,879.04/x
  3. Step 3: Cross multiply
    279,453.69x = 419,051.97 × 89,879.04
  4. Step 4: Simplify right side
    279,453.69x = 37,663,988,773.71
  5. Step 5: Solve for x
    x = 37,663,988,773.71/279,453.69
  6. Step 6: Final answer
    x = 134,777.21

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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.