Finding the Fourth Proportional to 365,404.80, 548,107.20 and 253,211.70
Calculator
Solution
The fourth proportional to 365,404.80, 548,107.20 and 253,211.70 is: 379,817.55
Step by Step Solution
- Step 1: Write the proportion equation
365,404.80 : 548,107.20 = 253,211.70 : x - Step 2: Convert to fraction form
365,404.80/548,107.20 = 253,211.70/x - Step 3: Cross multiply
365,404.80x = 548,107.20 × 253,211.70 - Step 4: Simplify right side
365,404.80x = 138,787,155,894.24 - Step 5: Solve for x
x = 138,787,155,894.24/365,404.80 - Step 6: Final answer
x = 379,817.55
Related Problems
Find fourth proportional to 182,702.40, 274,053.60 and 126,605.85
Half scale
Find fourth proportional to 730,809.60, 1,096,214.40 and 506,423.40
Double scale
Find fourth proportional to 365,405.80, 548,108.70 and 253,212.70
Similar ratio
Find fourth proportional to 548,107.20, 822,160.80 and 379,817.55
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.