Home / 263,272.30-394,908.45-105,613.90

Finding the Fourth Proportional to 263,272.30, 394,908.45 and 105,613.90

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Solution

The fourth proportional to 263,272.30, 394,908.45 and 105,613.90 is: 158,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,272.30 : 394,908.45 = 105,613.90 : x
  2. Step 2: Convert to fraction form
    263,272.30/394,908.45 = 105,613.90/x
  3. Step 3: Cross multiply
    263,272.30x = 394,908.45 × 105,613.90
  4. Step 4: Simplify right side
    263,272.30x = 41,707,821,547.46
  5. Step 5: Solve for x
    x = 41,707,821,547.46/263,272.30
  6. Step 6: Final answer
    x = 158,420.85

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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.