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Finding the Fourth Proportional to 279,637.56, 419,290.44 and 111,067.20

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Solution

The fourth proportional to 279,637.56, 419,290.44 and 111,067.20 is: 166,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,637.56 : 419,290.44 = 111,067.20 : x
  2. Step 2: Convert to fraction form
    279,637.56/419,290.44 = 111,067.20/x
  3. Step 3: Cross multiply
    279,637.56x = 419,290.44 × 111,067.20
  4. Step 4: Simplify right side
    279,637.56x = 46,569,415,157.57
  5. Step 5: Solve for x
    x = 46,569,415,157.57/279,637.56
  6. Step 6: Final answer
    x = 166,534.91

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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.