Finding the Fourth Proportional to 285,634.26, 394,175.60 and 158,309.96
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Solution
The fourth proportional to 285,634.26, 394,175.60 and 158,309.96 is: 218,467.92
Step by Step Solution
- Step 1: Write the proportion equation
285,634.26 : 394,175.60 = 158,309.96 : x - Step 2: Convert to fraction form
285,634.26/394,175.60 = 158,309.96/x - Step 3: Cross multiply
285,634.26x = 394,175.60 × 158,309.96 - Step 4: Simplify right side
285,634.26x = 62,401,921,300.21 - Step 5: Solve for x
x = 62,401,921,300.21/285,634.26 - Step 6: Final answer
x = 218,467.92
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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.