Finding the Fourth Proportional to 299,143.97, 448,464.26 and 139,138.59
Calculator
Solution
The fourth proportional to 299,143.97, 448,464.26 and 139,138.59 is: 208,590.82
Step by Step Solution
- Step 1: Write the proportion equation
299,143.97 : 448,464.26 = 139,138.59 : x - Step 2: Convert to fraction form
299,143.97/448,464.26 = 139,138.59/x - Step 3: Cross multiply
299,143.97x = 448,464.26 × 139,138.59 - Step 4: Simplify right side
299,143.97x = 62,398,686,831.38 - Step 5: Solve for x
x = 62,398,686,831.38/299,143.97 - Step 6: Final answer
x = 208,590.82
Related Problems
Find fourth proportional to 149,571.98, 224,232.13 and 69,569.30
Half scale
Find fourth proportional to 598,287.94, 896,928.53 and 278,277.19
Double scale
Find fourth proportional to 299,144.97, 448,465.76 and 139,139.59
Similar ratio
Find fourth proportional to 448,715.95, 672,696.39 and 208,707.89
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.