Home / 311,321.09-467,047.25-100,942.63

Finding the Fourth Proportional to 311,321.09, 467,047.25 and 100,942.63

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Solution

The fourth proportional to 311,321.09, 467,047.25 and 100,942.63 is: 151,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,321.09 : 467,047.25 = 100,942.63 : x
  2. Step 2: Convert to fraction form
    311,321.09/467,047.25 = 100,942.63/x
  3. Step 3: Cross multiply
    311,321.09x = 467,047.25 × 100,942.63
  4. Step 4: Simplify right side
    311,321.09x = 47,144,977,749.27
  5. Step 5: Solve for x
    x = 47,144,977,749.27/311,321.09
  6. Step 6: Final answer
    x = 151,435.22

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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.