Home / 397,316.10-595,992.78-131,099.88

Finding the Fourth Proportional to 397,316.10, 595,992.78 and 131,099.88

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Solution

The fourth proportional to 397,316.10, 595,992.78 and 131,099.88 is: 196,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,316.10 : 595,992.78 = 131,099.88 : x
  2. Step 2: Convert to fraction form
    397,316.10/595,992.78 = 131,099.88/x
  3. Step 3: Cross multiply
    397,316.10x = 595,992.78 × 131,099.88
  4. Step 4: Simplify right side
    397,316.10x = 78,134,581,938.87
  5. Step 5: Solve for x
    x = 78,134,581,938.87/397,316.10
  6. Step 6: Final answer
    x = 196,655.97

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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.