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Finding the Fourth Proportional to 263,017.58, 394,584.69 and 76,014.86

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Solution

The fourth proportional to 263,017.58, 394,584.69 and 76,014.86 is: 114,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,017.58 : 394,584.69 = 76,014.86 : x
  2. Step 2: Convert to fraction form
    263,017.58/394,584.69 = 76,014.86/x
  3. Step 3: Cross multiply
    263,017.58x = 394,584.69 × 76,014.86
  4. Step 4: Simplify right side
    263,017.58x = 29,994,299,968.49
  5. Step 5: Solve for x
    x = 29,994,299,968.49/263,017.58
  6. Step 6: Final answer
    x = 114,039.15

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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.