Finding the Fourth Proportional to 198,420.23, 273,821.97 and 107,777.96
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Solution
The fourth proportional to 198,420.23, 273,821.97 and 107,777.96 is: 148,734.70
Step by Step Solution
- Step 1: Write the proportion equation
198,420.23 : 273,821.97 = 107,777.96 : x - Step 2: Convert to fraction form
198,420.23/273,821.97 = 107,777.96/x - Step 3: Cross multiply
198,420.23x = 273,821.97 × 107,777.96 - Step 4: Simplify right side
198,420.23x = 29,511,971,960.67 - Step 5: Solve for x
x = 29,511,971,960.67/198,420.23 - Step 6: Final answer
x = 148,734.70
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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.