Finding the Fourth Proportional to 209,236.92, 288,744.62 and 155,761.08
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Solution
The fourth proportional to 209,236.92, 288,744.62 and 155,761.08 is: 214,948.56
Step by Step Solution
- Step 1: Write the proportion equation
209,236.92 : 288,744.62 = 155,761.08 : x - Step 2: Convert to fraction form
209,236.92/288,744.62 = 155,761.08/x - Step 3: Cross multiply
209,236.92x = 288,744.62 × 155,761.08 - Step 4: Simplify right side
209,236.92x = 44,975,173,855.39 - Step 5: Solve for x
x = 44,975,173,855.39/209,236.92 - Step 6: Final answer
x = 214,948.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.