Finding the Fourth Proportional to 198,589.85, 274,056.74 and 107,945.75
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Solution
The fourth proportional to 198,589.85, 274,056.74 and 107,945.75 is: 148,966.62
Step by Step Solution
- Step 1: Write the proportion equation
198,589.85 : 274,056.74 = 107,945.75 : x - Step 2: Convert to fraction form
198,589.85/274,056.74 = 107,945.75/x - Step 3: Cross multiply
198,589.85x = 274,056.74 × 107,945.75 - Step 4: Simplify right side
198,589.85x = 29,583,258,431.84 - Step 5: Solve for x
x = 29,583,258,431.84/198,589.85 - Step 6: Final answer
x = 148,966.62
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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.