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Finding the Fourth Proportional to 279,976.96, 419,550.56 and 230,409.28

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Solution

The fourth proportional to 279,976.96, 419,550.56 and 230,409.28 is: 345,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,976.96 : 419,550.56 = 230,409.28 : x
  2. Step 2: Convert to fraction form
    279,976.96/419,550.56 = 230,409.28/x
  3. Step 3: Cross multiply
    279,976.96x = 419,550.56 × 230,409.28
  4. Step 4: Simplify right side
    279,976.96x = 96,668,342,453.20
  5. Step 5: Solve for x
    x = 96,668,342,453.20/279,976.96
  6. Step 6: Final answer
    x = 345,272.49

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1.5x scale

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.