Finding the Fourth Proportional to 207,455.70, 311,183.55 and 203,999.70
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Solution
The fourth proportional to 207,455.70, 311,183.55 and 203,999.70 is: 305,999.55
Step by Step Solution
- Step 1: Write the proportion equation
207,455.70 : 311,183.55 = 203,999.70 : x - Step 2: Convert to fraction form
207,455.70/311,183.55 = 203,999.70/x - Step 3: Cross multiply
207,455.70x = 311,183.55 × 203,999.70 - Step 4: Simplify right side
207,455.70x = 63,481,350,844.94 - Step 5: Solve for x
x = 63,481,350,844.94/207,455.70 - Step 6: Final answer
x = 305,999.55
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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.