Finding the Fourth Proportional to 207,858.60, 311,879.70 and 101,183.40
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Solution
The fourth proportional to 207,858.60, 311,879.70 and 101,183.40 is: 151,819.79
Step by Step Solution
- Step 1: Write the proportion equation
207,858.60 : 311,879.70 = 101,183.40 : x - Step 2: Convert to fraction form
207,858.60/311,879.70 = 101,183.40/x - Step 3: Cross multiply
207,858.60x = 311,879.70 × 101,183.40 - Step 4: Simplify right side
207,858.60x = 31,557,048,436.98 - Step 5: Solve for x
x = 31,557,048,436.98/207,858.60 - Step 6: Final answer
x = 151,819.79
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1.5x scale
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.