Finding the Fourth Proportional to 198,402.50, 273,763.46 and 121,896.99
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Solution
The fourth proportional to 198,402.50, 273,763.46 and 121,896.99 is: 168,198.19
Step by Step Solution
- Step 1: Write the proportion equation
198,402.50 : 273,763.46 = 121,896.99 : x - Step 2: Convert to fraction form
198,402.50/273,763.46 = 121,896.99/x - Step 3: Cross multiply
198,402.50x = 273,763.46 × 121,896.99 - Step 4: Simplify right side
198,402.50x = 33,370,942,050.73 - Step 5: Solve for x
x = 33,370,942,050.73/198,402.50 - Step 6: Final answer
x = 168,198.19
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1.5x scale
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.