Finding the Fourth Proportional to 271,895.93, 407,885.35 and 138,703.53
Calculator
Solution
The fourth proportional to 271,895.93, 407,885.35 and 138,703.53 is: 208,076.44
Step by Step Solution
- Step 1: Write the proportion equation
271,895.93 : 407,885.35 = 138,703.53 : x - Step 2: Convert to fraction form
271,895.93/407,885.35 = 138,703.53/x - Step 3: Cross multiply
271,895.93x = 407,885.35 × 138,703.53 - Step 4: Simplify right side
271,895.93x = 56,575,137,880.29 - Step 5: Solve for x
x = 56,575,137,880.29/271,895.93 - Step 6: Final answer
x = 208,076.44
Related Problems
Find fourth proportional to 135,947.97, 203,942.68 and 69,351.77
Half scale
Find fourth proportional to 543,791.86, 815,770.70 and 277,407.06
Double scale
Find fourth proportional to 271,896.93, 407,886.85 and 138,704.53
Similar ratio
Find fourth proportional to 407,843.90, 611,828.03 and 208,055.30
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.