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Finding the Fourth Proportional to 279,436.60, 419,084.88 and 119,433.44

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Solution

The fourth proportional to 279,436.60, 419,084.88 and 119,433.44 is: 179,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,436.60 : 419,084.88 = 119,433.44 : x
  2. Step 2: Convert to fraction form
    279,436.60/419,084.88 = 119,433.44/x
  3. Step 3: Cross multiply
    279,436.60x = 419,084.88 × 119,433.44
  4. Step 4: Simplify right side
    279,436.60x = 50,052,748,870.39
  5. Step 5: Solve for x
    x = 50,052,748,870.39/279,436.60
  6. Step 6: Final answer
    x = 179,120.23

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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.