Finding the Fourth Proportional to 203,514.75, 280,853.87 and 112,874.67
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Solution
The fourth proportional to 203,514.75, 280,853.87 and 112,874.67 is: 155,768.99
Step by Step Solution
- Step 1: Write the proportion equation
203,514.75 : 280,853.87 = 112,874.67 : x - Step 2: Convert to fraction form
203,514.75/280,853.87 = 112,874.67/x - Step 3: Cross multiply
203,514.75x = 280,853.87 × 112,874.67 - Step 4: Simplify right side
203,514.75x = 31,701,287,330.10 - Step 5: Solve for x
x = 31,701,287,330.10/203,514.75 - Step 6: Final answer
x = 155,768.99
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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.