Finding the Fourth Proportional to 341,909.80, 512,864.70 and 155,285.80
Calculator
Solution
The fourth proportional to 341,909.80, 512,864.70 and 155,285.80 is: 232,928.70
Step by Step Solution
- Step 1: Write the proportion equation
341,909.80 : 512,864.70 = 155,285.80 : x - Step 2: Convert to fraction form
341,909.80/512,864.70 = 155,285.80/x - Step 3: Cross multiply
341,909.80x = 512,864.70 × 155,285.80 - Step 4: Simplify right side
341,909.80x = 79,640,605,231.26 - Step 5: Solve for x
x = 79,640,605,231.26/341,909.80 - Step 6: Final answer
x = 232,928.70
Related Problems
Find fourth proportional to 170,954.90, 256,432.35 and 77,642.90
Half scale
Find fourth proportional to 683,819.60, 1,025,729.40 and 310,571.60
Double scale
Find fourth proportional to 341,910.80, 512,866.20 and 155,286.80
Similar ratio
Find fourth proportional to 512,864.70, 769,297.05 and 232,928.70
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.