Home / 285,563.73-394,078.02-156,507.33

Finding the Fourth Proportional to 285,563.73, 394,078.02 and 156,507.33

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Solution

The fourth proportional to 285,563.73, 394,078.02 and 156,507.33 is: 215,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,563.73 : 394,078.02 = 156,507.33 : x
  2. Step 2: Convert to fraction form
    285,563.73/394,078.02 = 156,507.33/x
  3. Step 3: Cross multiply
    285,563.73x = 394,078.02 × 156,507.33
  4. Step 4: Simplify right side
    285,563.73x = 61,676,099,604.87
  5. Step 5: Solve for x
    x = 61,676,099,604.87/285,563.73
  6. Step 6: Final answer
    x = 215,980.16

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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.