Home / 311,223.78-466,836.06-86,584.32

Finding the Fourth Proportional to 311,223.78, 466,836.06 and 86,584.32

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Solution

The fourth proportional to 311,223.78, 466,836.06 and 86,584.32 is: 129,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,223.78 : 466,836.06 = 86,584.32 : x
  2. Step 2: Convert to fraction form
    311,223.78/466,836.06 = 86,584.32/x
  3. Step 3: Cross multiply
    311,223.78x = 466,836.06 × 86,584.32
  4. Step 4: Simplify right side
    311,223.78x = 40,420,682,806.58
  5. Step 5: Solve for x
    x = 40,420,682,806.58/311,223.78
  6. Step 6: Final answer
    x = 129,876.59

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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.