Finding the Fourth Proportional to 329,408.37, 494,231.09 and 129,618.09
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Solution
The fourth proportional to 329,408.37, 494,231.09 and 129,618.09 is: 194,473.78
Step by Step Solution
- Step 1: Write the proportion equation
329,408.37 : 494,231.09 = 129,618.09 : x - Step 2: Convert to fraction form
329,408.37/494,231.09 = 129,618.09/x - Step 3: Cross multiply
329,408.37x = 494,231.09 × 129,618.09 - Step 4: Simplify right side
329,408.37x = 64,061,289,256.33 - Step 5: Solve for x
x = 64,061,289,256.33/329,408.37 - Step 6: Final answer
x = 194,473.78
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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.