Finding the Fourth Proportional to 198,517.86, 273,954.84 and 107,874.84
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Solution
The fourth proportional to 198,517.86, 273,954.84 and 107,874.84 is: 148,867.38
Step by Step Solution
- Step 1: Write the proportion equation
198,517.86 : 273,954.84 = 107,874.84 : x - Step 2: Convert to fraction form
198,517.86/273,954.84 = 107,874.84/x - Step 3: Cross multiply
198,517.86x = 273,954.84 × 107,874.84 - Step 4: Simplify right side
198,517.86x = 29,552,834,532.23 - Step 5: Solve for x
x = 29,552,834,532.23/198,517.86 - Step 6: Final answer
x = 148,867.38
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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.