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Finding the Fourth Proportional to 279,504.44, 419,168.40 and 89,922.57

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Solution

The fourth proportional to 279,504.44, 419,168.40 and 89,922.57 is: 134,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,504.44 : 419,168.40 = 89,922.57 : x
  2. Step 2: Convert to fraction form
    279,504.44/419,168.40 = 89,922.57/x
  3. Step 3: Cross multiply
    279,504.44x = 419,168.40 × 89,922.57
  4. Step 4: Simplify right side
    279,504.44x = 37,692,699,790.79
  5. Step 5: Solve for x
    x = 37,692,699,790.79/279,504.44
  6. Step 6: Final answer
    x = 134,855.46

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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.