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Finding the Fourth Proportional to 263,459.85, 395,189.19 and 203,575.41

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Solution

The fourth proportional to 263,459.85, 395,189.19 and 203,575.41 is: 305,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,459.85 : 395,189.19 = 203,575.41 : x
  2. Step 2: Convert to fraction form
    263,459.85/395,189.19 = 203,575.41/x
  3. Step 3: Cross multiply
    263,459.85x = 395,189.19 × 203,575.41
  4. Step 4: Simplify right side
    263,459.85x = 80,450,801,381.82
  5. Step 5: Solve for x
    x = 80,450,801,381.82/263,459.85
  6. Step 6: Final answer
    x = 305,362.66

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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.