Home / 311,887.11-467,592.78-258,414.96

Finding the Fourth Proportional to 311,887.11, 467,592.78 and 258,414.96

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Solution

The fourth proportional to 311,887.11, 467,592.78 and 258,414.96 is: 387,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,887.11 : 467,592.78 = 258,414.96 : x
  2. Step 2: Convert to fraction form
    311,887.11/467,592.78 = 258,414.96/x
  3. Step 3: Cross multiply
    311,887.11x = 467,592.78 × 258,414.96
  4. Step 4: Simplify right side
    311,887.11x = 120,832,969,539.99
  5. Step 5: Solve for x
    x = 120,832,969,539.99/311,887.11
  6. Step 6: Final answer
    x = 387,425.34

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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.