Finding the Fourth Proportional to 149,408.20, 206,183.26 and 82,340.20
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Solution
The fourth proportional to 149,408.20, 206,183.26 and 82,340.20 is: 113,629.45
Step by Step Solution
- Step 1: Write the proportion equation
149,408.20 : 206,183.26 = 82,340.20 : x - Step 2: Convert to fraction form
149,408.20/206,183.26 = 82,340.20/x - Step 3: Cross multiply
149,408.20x = 206,183.26 × 82,340.20 - Step 4: Simplify right side
149,408.20x = 16,977,170,865.05 - Step 5: Solve for x
x = 16,977,170,865.05/149,408.20 - Step 6: Final answer
x = 113,629.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.