Finding the Fourth Proportional to 394,178.96, 543,967.46 and 224,413.08
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Solution
The fourth proportional to 394,178.96, 543,967.46 and 224,413.08 is: 309,690.33
Step by Step Solution
- Step 1: Write the proportion equation
394,178.96 : 543,967.46 = 224,413.08 : x - Step 2: Convert to fraction form
394,178.96/543,967.46 = 224,413.08/x - Step 3: Cross multiply
394,178.96x = 543,967.46 × 224,413.08 - Step 4: Simplify right side
394,178.96x = 122,073,413,118.38 - Step 5: Solve for x
x = 122,073,413,118.38/394,178.96 - Step 6: Final answer
x = 309,690.33
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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.