Finding the Fourth Proportional to 212,176.20, 318,407.42 and 87,514.44
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Solution
The fourth proportional to 212,176.20, 318,407.42 and 87,514.44 is: 131,330.69
Step by Step Solution
- Step 1: Write the proportion equation
212,176.20 : 318,407.42 = 87,514.44 : x - Step 2: Convert to fraction form
212,176.20/318,407.42 = 87,514.44/x - Step 3: Cross multiply
212,176.20x = 318,407.42 × 87,514.44 - Step 4: Simplify right side
212,176.20x = 27,865,247,053.14 - Step 5: Solve for x
x = 27,865,247,053.14/212,176.20 - Step 6: Final answer
x = 131,330.69
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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.