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Finding the Fourth Proportional to 393,625.56, 590,405.86 and 109,322.79

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Solution

The fourth proportional to 393,625.56, 590,405.86 and 109,322.79 is: 163,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,625.56 : 590,405.86 = 109,322.79 : x
  2. Step 2: Convert to fraction form
    393,625.56/590,405.86 = 109,322.79/x
  3. Step 3: Cross multiply
    393,625.56x = 590,405.86 × 109,322.79
  4. Step 4: Simplify right side
    393,625.56x = 64,544,815,847.55
  5. Step 5: Solve for x
    x = 64,544,815,847.55/393,625.56
  6. Step 6: Final answer
    x = 163,975.16

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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.