Home / 263,979.27-395,948.25-74,431.98

Finding the Fourth Proportional to 263,979.27, 395,948.25 and 74,431.98

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Solution

The fourth proportional to 263,979.27, 395,948.25 and 74,431.98 is: 111,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,979.27 : 395,948.25 = 74,431.98 : x
  2. Step 2: Convert to fraction form
    263,979.27/395,948.25 = 74,431.98/x
  3. Step 3: Cross multiply
    263,979.27x = 395,948.25 × 74,431.98
  4. Step 4: Simplify right side
    263,979.27x = 29,471,213,988.96
  5. Step 5: Solve for x
    x = 29,471,213,988.96/263,979.27
  6. Step 6: Final answer
    x = 111,642.15

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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.