Home / 268,481.70-402,694.83-90,984.12

Finding the Fourth Proportional to 268,481.70, 402,694.83 and 90,984.12

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Solution

The fourth proportional to 268,481.70, 402,694.83 and 90,984.12 is: 136,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,481.70 : 402,694.83 = 90,984.12 : x
  2. Step 2: Convert to fraction form
    268,481.70/402,694.83 = 90,984.12/x
  3. Step 3: Cross multiply
    268,481.70x = 402,694.83 × 90,984.12
  4. Step 4: Simplify right side
    268,481.70x = 36,638,834,736.10
  5. Step 5: Solve for x
    x = 36,638,834,736.10/268,481.70
  6. Step 6: Final answer
    x = 136,466.79

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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.