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Finding the Fourth Proportional to 263,553.44, 395,368.68 and 76,540.64

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Solution

The fourth proportional to 263,553.44, 395,368.68 and 76,540.64 is: 114,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,553.44 : 395,368.68 = 76,540.64 : x
  2. Step 2: Convert to fraction form
    263,553.44/395,368.68 = 76,540.64/x
  3. Step 3: Cross multiply
    263,553.44x = 395,368.68 × 76,540.64
  4. Step 4: Simplify right side
    263,553.44x = 30,261,771,803.16
  5. Step 5: Solve for x
    x = 30,261,771,803.16/263,553.44
  6. Step 6: Final answer
    x = 114,822.15

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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.