Finding the Fourth Proportional to 198,232.79, 273,563.21 and 107,589.56
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Solution
The fourth proportional to 198,232.79, 273,563.21 and 107,589.56 is: 148,474.65
Step by Step Solution
- Step 1: Write the proportion equation
198,232.79 : 273,563.21 = 107,589.56 : x - Step 2: Convert to fraction form
198,232.79/273,563.21 = 107,589.56/x - Step 3: Cross multiply
198,232.79x = 273,563.21 × 107,589.56 - Step 4: Simplify right side
198,232.79x = 29,432,544,297.25 - Step 5: Solve for x
x = 29,432,544,297.25/198,232.79 - Step 6: Final answer
x = 148,474.65
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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.