Home / 263,640.55-395,479.27-105,869

Finding the Fourth Proportional to 263,640.55, 395,479.27 and 105,869

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Solution

The fourth proportional to 263,640.55, 395,479.27 and 105,869 is: 158,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,640.55 : 395,479.27 = 105,869 : x
  2. Step 2: Convert to fraction form
    263,640.55/395,479.27 = 105,869/x
  3. Step 3: Cross multiply
    263,640.55x = 395,479.27 × 105,869
  4. Step 4: Simplify right side
    263,640.55x = 41,868,994,835.63
  5. Step 5: Solve for x
    x = 41,868,994,835.63/263,640.55
  6. Step 6: Final answer
    x = 158,810.91

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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.