Finding the Fourth Proportional to 347,199.65, 478,942.60 and 201,989.12
Calculator
Solution
The fourth proportional to 347,199.65, 478,942.60 and 201,989.12 is: 278,632.75
Step by Step Solution
- Step 1: Write the proportion equation
347,199.65 : 478,942.60 = 201,989.12 : x - Step 2: Convert to fraction form
347,199.65/478,942.60 = 201,989.12/x - Step 3: Cross multiply
347,199.65x = 478,942.60 × 201,989.12 - Step 4: Simplify right side
347,199.65x = 96,741,194,304.51 - Step 5: Solve for x
x = 96,741,194,304.51/347,199.65 - Step 6: Final answer
x = 278,632.75
Related Problems
Find fourth proportional to 173,599.83, 239,471.30 and 100,994.56
Half scale
Find fourth proportional to 694,399.30, 957,885.20 and 403,978.24
Double scale
Find fourth proportional to 347,200.65, 478,943.98 and 201,990.12
Similar ratio
Find fourth proportional to 520,799.48, 718,413.90 and 302,983.68
1.5x scale
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.