Home / 286,173.78-394,921.34-178,806.07

Finding the Fourth Proportional to 286,173.78, 394,921.34 and 178,806.07

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Solution

The fourth proportional to 286,173.78, 394,921.34 and 178,806.07 is: 246,753.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,173.78 : 394,921.34 = 178,806.07 : x
  2. Step 2: Convert to fraction form
    286,173.78/394,921.34 = 178,806.07/x
  3. Step 3: Cross multiply
    286,173.78x = 394,921.34 × 178,806.07
  4. Step 4: Simplify right side
    286,173.78x = 70,614,331,870.50
  5. Step 5: Solve for x
    x = 70,614,331,870.50/286,173.78
  6. Step 6: Final answer
    x = 246,753.33

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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.