Finding the Fourth Proportional to 207,675.80, 311,513.70 and 154,531.70
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Solution
The fourth proportional to 207,675.80, 311,513.70 and 154,531.70 is: 231,797.55
Step by Step Solution
- Step 1: Write the proportion equation
207,675.80 : 311,513.70 = 154,531.70 : x - Step 2: Convert to fraction form
207,675.80/311,513.70 = 154,531.70/x - Step 3: Cross multiply
207,675.80x = 311,513.70 × 154,531.70 - Step 4: Simplify right side
207,675.80x = 48,138,741,634.29 - Step 5: Solve for x
x = 48,138,741,634.29/207,675.80 - Step 6: Final answer
x = 231,797.55
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1.5x scale
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.