Finding the Fourth Proportional to 293,107.20, 439,660.80 and 71,491.20
Calculator
Solution
The fourth proportional to 293,107.20, 439,660.80 and 71,491.20 is: 107,236.80
Step by Step Solution
- Step 1: Write the proportion equation
293,107.20 : 439,660.80 = 71,491.20 : x - Step 2: Convert to fraction form
293,107.20/439,660.80 = 71,491.20/x - Step 3: Cross multiply
293,107.20x = 439,660.80 × 71,491.20 - Step 4: Simplify right side
293,107.20x = 31,431,878,184.96 - Step 5: Solve for x
x = 31,431,878,184.96/293,107.20 - Step 6: Final answer
x = 107,236.80
Related Problems
Find fourth proportional to 146,553.60, 219,830.40 and 35,745.60
Half scale
Find fourth proportional to 586,214.40, 879,321.60 and 142,982.40
Double scale
Find fourth proportional to 293,108.20, 439,662.30 and 71,492.20
Similar ratio
Find fourth proportional to 439,660.80, 659,491.20 and 107,236.80
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.