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Finding the Fourth Proportional to 263,880.38, 395,670.60 and 103,869.59

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Solution

The fourth proportional to 263,880.38, 395,670.60 and 103,869.59 is: 155,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,880.38 : 395,670.60 = 103,869.59 : x
  2. Step 2: Convert to fraction form
    263,880.38/395,670.60 = 103,869.59/x
  3. Step 3: Cross multiply
    263,880.38x = 395,670.60 × 103,869.59
  4. Step 4: Simplify right side
    263,880.38x = 41,098,141,018.70
  5. Step 5: Solve for x
    x = 41,098,141,018.70/263,880.38
  6. Step 6: Final answer
    x = 155,745.35

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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.