Finding the Fourth Proportional to 348,986.16, 522,445.86 and 215,437.05
Calculator
Solution
The fourth proportional to 348,986.16, 522,445.86 and 215,437.05 is: 322,517.65
Step by Step Solution
- Step 1: Write the proportion equation
348,986.16 : 522,445.86 = 215,437.05 : x - Step 2: Convert to fraction form
348,986.16/522,445.86 = 215,437.05/x - Step 3: Cross multiply
348,986.16x = 522,445.86 × 215,437.05 - Step 4: Simplify right side
348,986.16x = 112,554,194,863.11 - Step 5: Solve for x
x = 112,554,194,863.11/348,986.16 - Step 6: Final answer
x = 322,517.65
Related Problems
Find fourth proportional to 174,493.08, 261,222.93 and 107,718.53
Half scale
Find fourth proportional to 697,972.32, 1,044,891.72 and 430,874.10
Double scale
Find fourth proportional to 348,987.16, 522,447.36 and 215,438.05
Similar ratio
Find fourth proportional to 523,479.24, 783,668.79 and 323,155.58
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.