Finding the Fourth Proportional to 396.41, 546.99 and 249.01
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Solution
The fourth proportional to 396.41, 546.99 and 249.01 is: 343.60
Step by Step Solution
- Step 1: Write the proportion equation
396.41 : 546.99 = 249.01 : x - Step 2: Convert to fraction form
396.41/546.99 = 249.01/x - Step 3: Cross multiply
396.41x = 546.99 × 249.01 - Step 4: Simplify right side
396.41x = 136,207.04 - Step 5: Solve for x
x = 136,207.04/396.41 - Step 6: Final answer
x = 343.60
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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.