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Finding the Fourth Proportional to 179,705.80, 269,342.70 and 74,470.60

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Solution

The fourth proportional to 179,705.80, 269,342.70 and 74,470.60 is: 111,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,705.80 : 269,342.70 = 74,470.60 : x
  2. Step 2: Convert to fraction form
    179,705.80/269,342.70 = 74,470.60/x
  3. Step 3: Cross multiply
    179,705.80x = 269,342.70 × 74,470.60
  4. Step 4: Simplify right side
    179,705.80x = 20,058,112,474.62
  5. Step 5: Solve for x
    x = 20,058,112,474.62/179,705.80
  6. Step 6: Final answer
    x = 111,616.39

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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.