Finding the Fourth Proportional to 209,660.64, 289,234.92 and 123,560.88
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Solution
The fourth proportional to 209,660.64, 289,234.92 and 123,560.88 is: 170,456.99
Step by Step Solution
- Step 1: Write the proportion equation
209,660.64 : 289,234.92 = 123,560.88 : x - Step 2: Convert to fraction form
209,660.64/289,234.92 = 123,560.88/x - Step 3: Cross multiply
209,660.64x = 289,234.92 × 123,560.88 - Step 4: Simplify right side
209,660.64x = 35,738,121,241.93 - Step 5: Solve for x
x = 35,738,121,241.93/209,660.64 - Step 6: Final answer
x = 170,456.99
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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.