Home / 263,118.30-394,742.28-76,148.70

Finding the Fourth Proportional to 263,118.30, 394,742.28 and 76,148.70

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Solution

The fourth proportional to 263,118.30, 394,742.28 and 76,148.70 is: 114,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,118.30 : 394,742.28 = 76,148.70 : x
  2. Step 2: Convert to fraction form
    263,118.30/394,742.28 = 76,148.70/x
  3. Step 3: Cross multiply
    263,118.30x = 394,742.28 × 76,148.70
  4. Step 4: Simplify right side
    263,118.30x = 30,059,111,457.04
  5. Step 5: Solve for x
    x = 30,059,111,457.04/263,118.30
  6. Step 6: Final answer
    x = 114,241.81

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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.