Finding the Fourth Proportional to 263,252.70, 394,879.05 and 212,514.30
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Solution
The fourth proportional to 263,252.70, 394,879.05 and 212,514.30 is: 318,771.45
Step by Step Solution
- Step 1: Write the proportion equation
263,252.70 : 394,879.05 = 212,514.30 : x - Step 2: Convert to fraction form
263,252.70/394,879.05 = 212,514.30/x - Step 3: Cross multiply
263,252.70x = 394,879.05 × 212,514.30 - Step 4: Simplify right side
263,252.70x = 83,917,444,895.42 - Step 5: Solve for x
x = 83,917,444,895.42/263,252.70 - Step 6: Final answer
x = 318,771.45
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Similar ratio
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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.