Home / 268,336.07-402,576.69-90,843.09

Finding the Fourth Proportional to 268,336.07, 402,576.69 and 90,843.09

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Solution

The fourth proportional to 268,336.07, 402,576.69 and 90,843.09 is: 136,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,336.07 : 402,576.69 = 90,843.09 : x
  2. Step 2: Convert to fraction form
    268,336.07/402,576.69 = 90,843.09/x
  3. Step 3: Cross multiply
    268,336.07x = 402,576.69 × 90,843.09
  4. Step 4: Simplify right side
    268,336.07x = 36,571,310,481.57
  5. Step 5: Solve for x
    x = 36,571,310,481.57/268,336.07
  6. Step 6: Final answer
    x = 136,289.21

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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.