Finding the Fourth Proportional to 215,371.20, 324,492.48 and 198,367.68
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Solution
The fourth proportional to 215,371.20, 324,492.48 and 198,367.68 is: 298,873.85
Step by Step Solution
- Step 1: Write the proportion equation
215,371.20 : 324,492.48 = 198,367.68 : x - Step 2: Convert to fraction form
215,371.20/324,492.48 = 198,367.68/x - Step 3: Cross multiply
215,371.20x = 324,492.48 × 198,367.68 - Step 4: Simplify right side
215,371.20x = 64,368,820,435.05 - Step 5: Solve for x
x = 64,368,820,435.05/215,371.20 - Step 6: Final answer
x = 298,873.85
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.