Finding the Fourth Proportional to 398,861.22, 598,161.99 and 132,550.23
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Solution
The fourth proportional to 398,861.22, 598,161.99 and 132,550.23 is: 198,782.20
Step by Step Solution
- Step 1: Write the proportion equation
398,861.22 : 598,161.99 = 132,550.23 : x - Step 2: Convert to fraction form
398,861.22/598,161.99 = 132,550.23/x - Step 3: Cross multiply
398,861.22x = 598,161.99 × 132,550.23 - Step 4: Simplify right side
398,861.22x = 79,286,509,351.76 - Step 5: Solve for x
x = 79,286,509,351.76/398,861.22 - Step 6: Final answer
x = 198,782.20
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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.