Home / 285,566.37-394,076.87-156,503.85

Finding the Fourth Proportional to 285,566.37, 394,076.87 and 156,503.85

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Solution

The fourth proportional to 285,566.37, 394,076.87 and 156,503.85 is: 215,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,566.37 : 394,076.87 = 156,503.85 : x
  2. Step 2: Convert to fraction form
    285,566.37/394,076.87 = 156,503.85/x
  3. Step 3: Cross multiply
    285,566.37x = 394,076.87 × 156,503.85
  4. Step 4: Simplify right side
    285,566.37x = 61,674,546,568.43
  5. Step 5: Solve for x
    x = 61,674,546,568.43/285,566.37
  6. Step 6: Final answer
    x = 215,972.72

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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.