Home / 263,315.70-394,779.15-113,433.30

Finding the Fourth Proportional to 263,315.70, 394,779.15 and 113,433.30

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Solution

The fourth proportional to 263,315.70, 394,779.15 and 113,433.30 is: 170,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,315.70 : 394,779.15 = 113,433.30 : x
  2. Step 2: Convert to fraction form
    263,315.70/394,779.15 = 113,433.30/x
  3. Step 3: Cross multiply
    263,315.70x = 394,779.15 × 113,433.30
  4. Step 4: Simplify right side
    263,315.70x = 44,781,101,755.70
  5. Step 5: Solve for x
    x = 44,781,101,755.70/263,315.70
  6. Step 6: Final answer
    x = 170,066.20

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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.