Finding the Fourth Proportional to 198,400.08, 273,794.09 and 107,757.81
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Solution
The fourth proportional to 198,400.08, 273,794.09 and 107,757.81 is: 148,706.85
Step by Step Solution
- Step 1: Write the proportion equation
198,400.08 : 273,794.09 = 107,757.81 : x - Step 2: Convert to fraction form
198,400.08/273,794.09 = 107,757.81/x - Step 3: Cross multiply
198,400.08x = 273,794.09 × 107,757.81 - Step 4: Simplify right side
198,400.08x = 29,503,450,990.55 - Step 5: Solve for x
x = 29,503,450,990.55/198,400.08 - Step 6: Final answer
x = 148,706.85
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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.