Finding the Fourth Proportional to 410,145.70, 615,219.99 and 199,603.30
Calculator
Solution
The fourth proportional to 410,145.70, 615,219.99 and 199,603.30 is: 299,405.65
Step by Step Solution
- Step 1: Write the proportion equation
410,145.70 : 615,219.99 = 199,603.30 : x - Step 2: Convert to fraction form
410,145.70/615,219.99 = 199,603.30/x - Step 3: Cross multiply
410,145.70x = 615,219.99 × 199,603.30 - Step 4: Simplify right side
410,145.70x = 122,799,940,229.97 - Step 5: Solve for x
x = 122,799,940,229.97/410,145.70 - Step 6: Final answer
x = 299,405.65
Related Problems
Find fourth proportional to 205,072.85, 307,610.00 and 99,801.65
Half scale
Find fourth proportional to 820,291.40, 1,230,439.98 and 399,206.60
Double scale
Find fourth proportional to 410,146.70, 615,221.49 and 199,604.30
Similar ratio
Find fourth proportional to 615,218.55, 922,829.99 and 299,404.95
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.