Finding the Fourth Proportional to 198,512.07, 273,946.14 and 107,868.05
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Solution
The fourth proportional to 198,512.07, 273,946.14 and 107,868.05 is: 148,857.62
Step by Step Solution
- Step 1: Write the proportion equation
198,512.07 : 273,946.14 = 107,868.05 : x - Step 2: Convert to fraction form
198,512.07/273,946.14 = 107,868.05/x - Step 3: Cross multiply
198,512.07x = 273,946.14 × 107,868.05 - Step 4: Simplify right side
198,512.07x = 29,550,034,557.10 - Step 5: Solve for x
x = 29,550,034,557.10/198,512.07 - Step 6: Final answer
x = 148,857.62
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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.