Home / 394,382.32-591,336.52-154,210.10

Finding the Fourth Proportional to 394,382.32, 591,336.52 and 154,210.10

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Solution

The fourth proportional to 394,382.32, 591,336.52 and 154,210.10 is: 231,222.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,382.32 : 591,336.52 = 154,210.10 : x
  2. Step 2: Convert to fraction form
    394,382.32/591,336.52 = 154,210.10/x
  3. Step 3: Cross multiply
    394,382.32x = 591,336.52 × 154,210.10
  4. Step 4: Simplify right side
    394,382.32x = 91,190,060,540.64
  5. Step 5: Solve for x
    x = 91,190,060,540.64/394,382.32
  6. Step 6: Final answer
    x = 231,222.49

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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.