Home / 399,198.38-550,986.30-263,256.89

Finding the Fourth Proportional to 399,198.38, 550,986.30 and 263,256.89

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Solution

The fourth proportional to 399,198.38, 550,986.30 and 263,256.89 is: 363,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,198.38 : 550,986.30 = 263,256.89 : x
  2. Step 2: Convert to fraction form
    399,198.38/550,986.30 = 263,256.89/x
  3. Step 3: Cross multiply
    399,198.38x = 550,986.30 × 263,256.89
  4. Step 4: Simplify right side
    399,198.38x = 145,050,937,015.68
  5. Step 5: Solve for x
    x = 145,050,937,015.68/399,198.38
  6. Step 6: Final answer
    x = 363,355.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.