Home / 263,972.95-395,938.78-74,425.66

Finding the Fourth Proportional to 263,972.95, 395,938.78 and 74,425.66

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Solution

The fourth proportional to 263,972.95, 395,938.78 and 74,425.66 is: 111,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,972.95 : 395,938.78 = 74,425.66 : x
  2. Step 2: Convert to fraction form
    263,972.95/395,938.78 = 74,425.66/x
  3. Step 3: Cross multiply
    263,972.95x = 395,938.78 × 74,425.66
  4. Step 4: Simplify right side
    263,972.95x = 29,468,006,524.47
  5. Step 5: Solve for x
    x = 29,468,006,524.47/263,972.95
  6. Step 6: Final answer
    x = 111,632.67

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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.