Finding the Fourth Proportional to 416,115.20, 624,172.80 and 206,163.20
Calculator
Solution
The fourth proportional to 416,115.20, 624,172.80 and 206,163.20 is: 309,244.80
Step by Step Solution
- Step 1: Write the proportion equation
416,115.20 : 624,172.80 = 206,163.20 : x - Step 2: Convert to fraction form
416,115.20/624,172.80 = 206,163.20/x - Step 3: Cross multiply
416,115.20x = 624,172.80 × 206,163.20 - Step 4: Simplify right side
416,115.20x = 128,681,461,800.96 - Step 5: Solve for x
x = 128,681,461,800.96/416,115.20 - Step 6: Final answer
x = 309,244.80
Related Problems
Find fourth proportional to 208,057.60, 312,086.40 and 103,081.60
Half scale
Find fourth proportional to 832,230.40, 1,248,345.60 and 412,326.40
Double scale
Find fourth proportional to 416,116.20, 624,174.30 and 206,164.20
Similar ratio
Find fourth proportional to 624,172.80, 936,259.20 and 309,244.80
1.5x scale
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.