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Finding the Fourth Proportional to 263,404.56, 395,090.49 and 162,221.88

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Solution

The fourth proportional to 263,404.56, 395,090.49 and 162,221.88 is: 243,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,404.56 : 395,090.49 = 162,221.88 : x
  2. Step 2: Convert to fraction form
    263,404.56/395,090.49 = 162,221.88/x
  3. Step 3: Cross multiply
    263,404.56x = 395,090.49 × 162,221.88
  4. Step 4: Simplify right side
    263,404.56x = 64,092,322,057.92
  5. Step 5: Solve for x
    x = 64,092,322,057.92/263,404.56
  6. Step 6: Final answer
    x = 243,322.75

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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.