Finding the Fourth Proportional to 198,137.75, 297,203.18 and 79,806.06
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Solution
The fourth proportional to 198,137.75, 297,203.18 and 79,806.06 is: 119,707.70
Step by Step Solution
- Step 1: Write the proportion equation
198,137.75 : 297,203.18 = 79,806.06 : x - Step 2: Convert to fraction form
198,137.75/297,203.18 = 79,806.06/x - Step 3: Cross multiply
198,137.75x = 297,203.18 × 79,806.06 - Step 4: Simplify right side
198,137.75x = 23,718,614,416.24 - Step 5: Solve for x
x = 23,718,614,416.24/198,137.75 - Step 6: Final answer
x = 119,707.70
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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.