Finding the Fourth Proportional to 373,563.09, 515,514.61 and 212,418.15
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Solution
The fourth proportional to 373,563.09, 515,514.61 and 212,418.15 is: 293,135.65
Step by Step Solution
- Step 1: Write the proportion equation
373,563.09 : 515,514.61 = 212,418.15 : x - Step 2: Convert to fraction form
373,563.09/515,514.61 = 212,418.15/x - Step 3: Cross multiply
373,563.09x = 515,514.61 × 212,418.15 - Step 4: Simplify right side
373,563.09x = 109,504,659,754.17 - Step 5: Solve for x
x = 109,504,659,754.17/373,563.09 - Step 6: Final answer
x = 293,135.65
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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.