Home / 263,628.47-395,442.61-105,856.88

Finding the Fourth Proportional to 263,628.47, 395,442.61 and 105,856.88

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Solution

The fourth proportional to 263,628.47, 395,442.61 and 105,856.88 is: 158,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,628.47 : 395,442.61 = 105,856.88 : x
  2. Step 2: Convert to fraction form
    263,628.47/395,442.61 = 105,856.88/x
  3. Step 3: Cross multiply
    263,628.47x = 395,442.61 × 105,856.88
  4. Step 4: Simplify right side
    263,628.47x = 41,860,318,671.80
  5. Step 5: Solve for x
    x = 41,860,318,671.80/263,628.47
  6. Step 6: Final answer
    x = 158,785.27

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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.