Finding the Fourth Proportional to 266,163.62, 398,913.18 and 133,081.94
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Solution
The fourth proportional to 266,163.62, 398,913.18 and 133,081.94 is: 199,456.78
Step by Step Solution
- Step 1: Write the proportion equation
266,163.62 : 398,913.18 = 133,081.94 : x - Step 2: Convert to fraction form
266,163.62/398,913.18 = 133,081.94/x - Step 3: Cross multiply
266,163.62x = 398,913.18 × 133,081.94 - Step 4: Simplify right side
266,163.62x = 53,088,137,891.40 - Step 5: Solve for x
x = 53,088,137,891.40/266,163.62 - Step 6: Final answer
x = 199,456.78
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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.