Finding the Fourth Proportional to 445.68, 615.08 and 249.22
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Solution
The fourth proportional to 445.68, 615.08 and 249.22 is: 343.95
Step by Step Solution
- Step 1: Write the proportion equation
445.68 : 615.08 = 249.22 : x - Step 2: Convert to fraction form
445.68/615.08 = 249.22/x - Step 3: Cross multiply
445.68x = 615.08 × 249.22 - Step 4: Simplify right side
445.68x = 153,290.24 - Step 5: Solve for x
x = 153,290.24/445.68 - Step 6: Final answer
x = 343.95
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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.