Finding the Fourth Proportional to 207,649.88, 311,022.41 and 136,492.19
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Solution
The fourth proportional to 207,649.88, 311,022.41 and 136,492.19 is: 204,440.90
Step by Step Solution
- Step 1: Write the proportion equation
207,649.88 : 311,022.41 = 136,492.19 : x - Step 2: Convert to fraction form
207,649.88/311,022.41 = 136,492.19/x - Step 3: Cross multiply
207,649.88x = 311,022.41 × 136,492.19 - Step 4: Simplify right side
207,649.88x = 42,452,127,642.40 - Step 5: Solve for x
x = 42,452,127,642.40/207,649.88 - Step 6: Final answer
x = 204,440.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.