Home / 311,949.20-467,999.40-90,333.20

Finding the Fourth Proportional to 311,949.20, 467,999.40 and 90,333.20

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Solution

The fourth proportional to 311,949.20, 467,999.40 and 90,333.20 is: 135,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,949.20 : 467,999.40 = 90,333.20 : x
  2. Step 2: Convert to fraction form
    311,949.20/467,999.40 = 90,333.20/x
  3. Step 3: Cross multiply
    311,949.20x = 467,999.40 × 90,333.20
  4. Step 4: Simplify right side
    311,949.20x = 42,275,883,400.08
  5. Step 5: Solve for x
    x = 42,275,883,400.08/311,949.20
  6. Step 6: Final answer
    x = 135,521.69

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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.