Finding the Fourth Proportional to 198,697.68, 274,197.42 and 112,672.44
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Solution
The fourth proportional to 198,697.68, 274,197.42 and 112,672.44 is: 155,484.92
Step by Step Solution
- Step 1: Write the proportion equation
198,697.68 : 274,197.42 = 112,672.44 : x - Step 2: Convert to fraction form
198,697.68/274,197.42 = 112,672.44/x - Step 3: Cross multiply
198,697.68x = 274,197.42 × 112,672.44 - Step 4: Simplify right side
198,697.68x = 30,894,492,353.10 - Step 5: Solve for x
x = 30,894,492,353.10/198,697.68 - Step 6: Final answer
x = 155,484.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.