Finding the Fourth Proportional to 372,107.45, 513,502.43 and 202,340.09
Calculator
Solution
The fourth proportional to 372,107.45, 513,502.43 and 202,340.09 is: 279,226.14
Step by Step Solution
- Step 1: Write the proportion equation
372,107.45 : 513,502.43 = 202,340.09 : x - Step 2: Convert to fraction form
372,107.45/513,502.43 = 202,340.09/x - Step 3: Cross multiply
372,107.45x = 513,502.43 × 202,340.09 - Step 4: Simplify right side
372,107.45x = 103,902,126,889.72 - Step 5: Solve for x
x = 103,902,126,889.72/372,107.45 - Step 6: Final answer
x = 279,226.14
Related Problems
Find fourth proportional to 186,053.73, 256,751.21 and 101,170.05
Half scale
Find fourth proportional to 744,214.90, 1,027,004.85 and 404,680.18
Double scale
Find fourth proportional to 372,108.45, 513,503.80 and 202,341.09
Similar ratio
Find fourth proportional to 558,161.18, 770,253.64 and 303,510.14
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.