Finding the Fourth Proportional to 198,197.42, 273,512.63 and 113,316.26
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Solution
The fourth proportional to 198,197.42, 273,512.63 and 113,316.26 is: 156,376.54
Step by Step Solution
- Step 1: Write the proportion equation
198,197.42 : 273,512.63 = 113,316.26 : x - Step 2: Convert to fraction form
198,197.42/273,512.63 = 113,316.26/x - Step 3: Cross multiply
198,197.42x = 273,512.63 × 113,316.26 - Step 4: Simplify right side
198,197.42x = 30,993,427,727.78 - Step 5: Solve for x
x = 30,993,427,727.78/198,197.42 - Step 6: Final answer
x = 156,376.54
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1.5x scale
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.