Finding the Fourth Proportional to 285,909.62, 394,552.42 and 158,581.94
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Solution
The fourth proportional to 285,909.62, 394,552.42 and 158,581.94 is: 218,841.49
Step by Step Solution
- Step 1: Write the proportion equation
285,909.62 : 394,552.42 = 158,581.94 : x - Step 2: Convert to fraction form
285,909.62/394,552.42 = 158,581.94/x - Step 3: Cross multiply
285,909.62x = 394,552.42 × 158,581.94 - Step 4: Simplify right side
285,909.62x = 62,568,885,826.08 - Step 5: Solve for x
x = 62,568,885,826.08/285,909.62 - Step 6: Final answer
x = 218,841.49
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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.