Home / 263,815.23-395,727.20-74,280.16

Finding the Fourth Proportional to 263,815.23, 395,727.20 and 74,280.16

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Solution

The fourth proportional to 263,815.23, 395,727.20 and 74,280.16 is: 111,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,815.23 : 395,727.20 = 74,280.16 : x
  2. Step 2: Convert to fraction form
    263,815.23/395,727.20 = 74,280.16/x
  3. Step 3: Cross multiply
    263,815.23x = 395,727.20 × 74,280.16
  4. Step 4: Simplify right side
    263,815.23x = 29,394,680,134.16
  5. Step 5: Solve for x
    x = 29,394,680,134.16/263,815.23
  6. Step 6: Final answer
    x = 111,421.47

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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.