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Finding the Fourth Proportional to 326,016.56, 449,904 and 190,144.32

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Solution

The fourth proportional to 326,016.56, 449,904 and 190,144.32 is: 262,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,016.56 : 449,904 = 190,144.32 : x
  2. Step 2: Convert to fraction form
    326,016.56/449,904 = 190,144.32/x
  3. Step 3: Cross multiply
    326,016.56x = 449,904 × 190,144.32
  4. Step 4: Simplify right side
    326,016.56x = 85,546,690,145.28
  5. Step 5: Solve for x
    x = 85,546,690,145.28/326,016.56
  6. Step 6: Final answer
    x = 262,399.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.