Finding the Fourth Proportional to 432,821.80, 649,232.70 and 255,413.80
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Solution
The fourth proportional to 432,821.80, 649,232.70 and 255,413.80 is: 383,120.70
Step by Step Solution
- Step 1: Write the proportion equation
432,821.80 : 649,232.70 = 255,413.80 : x - Step 2: Convert to fraction form
432,821.80/649,232.70 = 255,413.80/x - Step 3: Cross multiply
432,821.80x = 649,232.70 × 255,413.80 - Step 4: Simplify right side
432,821.80x = 165,822,990,991.26 - Step 5: Solve for x
x = 165,822,990,991.26/432,821.80 - Step 6: Final answer
x = 383,120.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.