Finding the Fourth Proportional to 285,758.26, 394,368.70 and 158,458.66
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Solution
The fourth proportional to 285,758.26, 394,368.70 and 158,458.66 is: 218,685.32
Step by Step Solution
- Step 1: Write the proportion equation
285,758.26 : 394,368.70 = 158,458.66 : x - Step 2: Convert to fraction form
285,758.26/394,368.70 = 158,458.66/x - Step 3: Cross multiply
285,758.26x = 394,368.70 × 158,458.66 - Step 4: Simplify right side
285,758.26x = 62,491,135,747.94 - Step 5: Solve for x
x = 62,491,135,747.94/285,758.26 - Step 6: Final answer
x = 218,685.32
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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.