Finding the Fourth Proportional to 221,414.80, 332,122.20 and 206,543.20
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Solution
The fourth proportional to 221,414.80, 332,122.20 and 206,543.20 is: 309,814.80
Step by Step Solution
- Step 1: Write the proportion equation
221,414.80 : 332,122.20 = 206,543.20 : x - Step 2: Convert to fraction form
221,414.80/332,122.20 = 206,543.20/x - Step 3: Cross multiply
221,414.80x = 332,122.20 × 206,543.20 - Step 4: Simplify right side
221,414.80x = 68,597,581,979.04 - Step 5: Solve for x
x = 68,597,581,979.04/221,414.80 - Step 6: Final answer
x = 309,814.80
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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.