Finding the Fourth Proportional to 353,121.40, 529,682.10 and 211,403.80
Calculator
Solution
The fourth proportional to 353,121.40, 529,682.10 and 211,403.80 is: 317,105.70
Step by Step Solution
- Step 1: Write the proportion equation
353,121.40 : 529,682.10 = 211,403.80 : x - Step 2: Convert to fraction form
353,121.40/529,682.10 = 211,403.80/x - Step 3: Cross multiply
353,121.40x = 529,682.10 × 211,403.80 - Step 4: Simplify right side
353,121.40x = 111,976,808,731.98 - Step 5: Solve for x
x = 111,976,808,731.98/353,121.40 - Step 6: Final answer
x = 317,105.70
Related Problems
Find fourth proportional to 176,560.70, 264,841.05 and 105,701.90
Half scale
Find fourth proportional to 706,242.80, 1,059,364.20 and 422,807.60
Double scale
Find fourth proportional to 353,122.40, 529,683.60 and 211,404.80
Similar ratio
Find fourth proportional to 529,682.10, 794,523.15 and 317,105.70
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.