Finding the Fourth Proportional to 285,821.08, 394,456.74 and 158,537.80
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Solution
The fourth proportional to 285,821.08, 394,456.74 and 158,537.80 is: 218,795.28
Step by Step Solution
- Step 1: Write the proportion equation
285,821.08 : 394,456.74 = 158,537.80 : x - Step 2: Convert to fraction form
285,821.08/394,456.74 = 158,537.80/x - Step 3: Cross multiply
285,821.08x = 394,456.74 × 158,537.80 - Step 4: Simplify right side
285,821.08x = 62,536,303,754.77 - Step 5: Solve for x
x = 62,536,303,754.77/285,821.08 - Step 6: Final answer
x = 218,795.28
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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.