Finding the Fourth Proportional to 194,939.80, 292,409.70 and 121,211.80
Calculator
Solution
The fourth proportional to 194,939.80, 292,409.70 and 121,211.80 is: 181,817.70
Step by Step Solution
- Step 1: Write the proportion equation
194,939.80 : 292,409.70 = 121,211.80 : x - Step 2: Convert to fraction form
194,939.80/292,409.70 = 121,211.80/x - Step 3: Cross multiply
194,939.80x = 292,409.70 × 121,211.80 - Step 4: Simplify right side
194,939.80x = 35,443,506,074.46 - Step 5: Solve for x
x = 35,443,506,074.46/194,939.80 - Step 6: Final answer
x = 181,817.70
Related Problems
Find fourth proportional to 97,469.90, 146,204.85 and 60,605.90
Half scale
Find fourth proportional to 389,879.60, 584,819.40 and 242,423.60
Double scale
Find fourth proportional to 194,940.80, 292,411.20 and 121,212.80
Similar ratio
Find fourth proportional to 292,409.70, 438,614.55 and 181,817.70
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.