Home / 263,600.78-395,427.64-74,061.60

Finding the Fourth Proportional to 263,600.78, 395,427.64 and 74,061.60

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Solution

The fourth proportional to 263,600.78, 395,427.64 and 74,061.60 is: 111,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,600.78 : 395,427.64 = 74,061.60 : x
  2. Step 2: Convert to fraction form
    263,600.78/395,427.64 = 74,061.60/x
  3. Step 3: Cross multiply
    263,600.78x = 395,427.64 × 74,061.60
  4. Step 4: Simplify right side
    263,600.78x = 29,286,003,702.62
  5. Step 5: Solve for x
    x = 29,286,003,702.62/263,600.78
  6. Step 6: Final answer
    x = 111,099.84

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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.