Finding the Fourth Proportional to 190,206.75, 262,482.09 and 105,321.99
Calculator
Solution
The fourth proportional to 190,206.75, 262,482.09 and 105,321.99 is: 145,342.56
Step by Step Solution
- Step 1: Write the proportion equation
190,206.75 : 262,482.09 = 105,321.99 : x - Step 2: Convert to fraction form
190,206.75/262,482.09 = 105,321.99/x - Step 3: Cross multiply
190,206.75x = 262,482.09 × 105,321.99 - Step 4: Simplify right side
190,206.75x = 27,645,134,745.75 - Step 5: Solve for x
x = 27,645,134,745.75/190,206.75 - Step 6: Final answer
x = 145,342.56
Related Problems
Find fourth proportional to 95,103.37, 131,241.05 and 52,660.99
Half scale
Find fourth proportional to 380,413.49, 524,964.18 and 210,643.97
Double scale
Find fourth proportional to 190,207.75, 262,483.47 and 105,322.99
Similar ratio
Find fourth proportional to 285,310.12, 393,723.14 and 157,982.98
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.