Home / 311,917.40-467,568.90-154,170.20

Finding the Fourth Proportional to 311,917.40, 467,568.90 and 154,170.20

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Solution

The fourth proportional to 311,917.40, 467,568.90 and 154,170.20 is: 231,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,917.40 : 467,568.90 = 154,170.20 : x
  2. Step 2: Convert to fraction form
    311,917.40/467,568.90 = 154,170.20/x
  3. Step 3: Cross multiply
    311,917.40x = 467,568.90 × 154,170.20
  4. Step 4: Simplify right side
    311,917.40x = 72,085,190,826.78
  5. Step 5: Solve for x
    x = 72,085,190,826.78/311,917.40
  6. Step 6: Final answer
    x = 231,103.46

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1.5x scale

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.