Finding the Fourth Proportional to 223,212.21, 308,035.09 and 121,239.67
Calculator
Solution
The fourth proportional to 223,212.21, 308,035.09 and 121,239.67 is: 167,311.96
Step by Step Solution
- Step 1: Write the proportion equation
223,212.21 : 308,035.09 = 121,239.67 : x - Step 2: Convert to fraction form
223,212.21/308,035.09 = 121,239.67/x - Step 3: Cross multiply
223,212.21x = 308,035.09 × 121,239.67 - Step 4: Simplify right side
223,212.21x = 37,346,072,660.02 - Step 5: Solve for x
x = 37,346,072,660.02/223,212.21 - Step 6: Final answer
x = 167,311.96
Related Problems
Find fourth proportional to 111,606.11, 154,017.55 and 60,619.84
Half scale
Find fourth proportional to 446,424.42, 616,070.18 and 242,479.34
Double scale
Find fourth proportional to 223,213.21, 308,036.47 and 121,240.67
Similar ratio
Find fourth proportional to 334,818.32, 462,052.64 and 181,859.51
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.