Home / 311,864.20-467,258.70-145,310.60

Finding the Fourth Proportional to 311,864.20, 467,258.70 and 145,310.60

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Solution

The fourth proportional to 311,864.20, 467,258.70 and 145,310.60 is: 217,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,864.20 : 467,258.70 = 145,310.60 : x
  2. Step 2: Convert to fraction form
    311,864.20/467,258.70 = 145,310.60/x
  3. Step 3: Cross multiply
    311,864.20x = 467,258.70 × 145,310.60
  4. Step 4: Simplify right side
    311,864.20x = 67,897,642,052.22
  5. Step 5: Solve for x
    x = 67,897,642,052.22/311,864.20
  6. Step 6: Final answer
    x = 217,715.41

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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.