Home / 286,173.90-394,921.51-178,806.20

Finding the Fourth Proportional to 286,173.90, 394,921.51 and 178,806.20

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Solution

The fourth proportional to 286,173.90, 394,921.51 and 178,806.20 is: 246,753.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,173.90 : 394,921.51 = 178,806.20 : x
  2. Step 2: Convert to fraction form
    286,173.90/394,921.51 = 178,806.20/x
  3. Step 3: Cross multiply
    286,173.90x = 394,921.51 × 178,806.20
  4. Step 4: Simplify right side
    286,173.90x = 70,614,412,079.74
  5. Step 5: Solve for x
    x = 70,614,412,079.74/286,173.90
  6. Step 6: Final answer
    x = 246,753.50

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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.