Finding the Fourth Proportional to 222,115.68, 306,540.72 and 121,528.80
Calculator
Solution
The fourth proportional to 222,115.68, 306,540.72 and 121,528.80 is: 167,721.28
Step by Step Solution
- Step 1: Write the proportion equation
222,115.68 : 306,540.72 = 121,528.80 : x - Step 2: Convert to fraction form
222,115.68/306,540.72 = 121,528.80/x - Step 3: Cross multiply
222,115.68x = 306,540.72 × 121,528.80 - Step 4: Simplify right side
222,115.68x = 37,253,525,852.74 - Step 5: Solve for x
x = 37,253,525,852.74/222,115.68 - Step 6: Final answer
x = 167,721.28
Related Problems
Find fourth proportional to 111,057.84, 153,270.36 and 60,764.40
Half scale
Find fourth proportional to 444,231.36, 613,081.44 and 243,057.60
Double scale
Find fourth proportional to 222,116.68, 306,542.10 and 121,529.80
Similar ratio
Find fourth proportional to 333,173.52, 459,811.08 and 182,293.20
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.