Finding the Fourth Proportional to 246,643.80, 369,965.70 and 80,431.80
Calculator
Solution
The fourth proportional to 246,643.80, 369,965.70 and 80,431.80 is: 120,647.70
Step by Step Solution
- Step 1: Write the proportion equation
246,643.80 : 369,965.70 = 80,431.80 : x - Step 2: Convert to fraction form
246,643.80/369,965.70 = 80,431.80/x - Step 3: Cross multiply
246,643.80x = 369,965.70 × 80,431.80 - Step 4: Simplify right side
246,643.80x = 29,757,007,189.26 - Step 5: Solve for x
x = 29,757,007,189.26/246,643.80 - Step 6: Final answer
x = 120,647.70
Related Problems
Find fourth proportional to 123,321.90, 184,982.85 and 40,215.90
Half scale
Find fourth proportional to 493,287.60, 739,931.40 and 160,863.60
Double scale
Find fourth proportional to 246,644.80, 369,967.20 and 80,432.80
Similar ratio
Find fourth proportional to 369,965.70, 554,948.55 and 120,647.70
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.