Finding the Fourth Proportional to 358,049.58, 494,121.12 and 196,917.09
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Solution
The fourth proportional to 358,049.58, 494,121.12 and 196,917.09 is: 271,752.57
Step by Step Solution
- Step 1: Write the proportion equation
358,049.58 : 494,121.12 = 196,917.09 : x - Step 2: Convert to fraction form
358,049.58/494,121.12 = 196,917.09/x - Step 3: Cross multiply
358,049.58x = 494,121.12 × 196,917.09 - Step 4: Simplify right side
358,049.58x = 97,300,893,057.94 - Step 5: Solve for x
x = 97,300,893,057.94/358,049.58 - Step 6: Final answer
x = 271,752.57
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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.