Home / 311,881.86-467,434.26-143,222.85

Finding the Fourth Proportional to 311,881.86, 467,434.26 and 143,222.85

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Solution

The fourth proportional to 311,881.86, 467,434.26 and 143,222.85 is: 214,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,881.86 : 467,434.26 = 143,222.85 : x
  2. Step 2: Convert to fraction form
    311,881.86/467,434.26 = 143,222.85/x
  3. Step 3: Cross multiply
    311,881.86x = 467,434.26 × 143,222.85
  4. Step 4: Simplify right side
    311,881.86x = 66,947,266,904.84
  5. Step 5: Solve for x
    x = 66,947,266,904.84/311,881.86
  6. Step 6: Final answer
    x = 214,655.85

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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.