Finding the Fourth Proportional to 207,751.20, 311,626.80 and 194,629.20
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Solution
The fourth proportional to 207,751.20, 311,626.80 and 194,629.20 is: 291,943.80
Step by Step Solution
- Step 1: Write the proportion equation
207,751.20 : 311,626.80 = 194,629.20 : x - Step 2: Convert to fraction form
207,751.20/311,626.80 = 194,629.20/x - Step 3: Cross multiply
207,751.20x = 311,626.80 × 194,629.20 - Step 4: Simplify right side
207,751.20x = 60,651,674,782.56 - Step 5: Solve for x
x = 60,651,674,782.56/207,751.20 - Step 6: Final answer
x = 291,943.80
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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.