Finding the Fourth Proportional to 234,438.12, 323,548.26 and 138,960.36
Calculator
Solution
The fourth proportional to 234,438.12, 323,548.26 and 138,960.36 is: 191,779.32
Step by Step Solution
- Step 1: Write the proportion equation
234,438.12 : 323,548.26 = 138,960.36 : x - Step 2: Convert to fraction form
234,438.12/323,548.26 = 138,960.36/x - Step 3: Cross multiply
234,438.12x = 323,548.26 × 138,960.36 - Step 4: Simplify right side
234,438.12x = 44,960,382,686.97 - Step 5: Solve for x
x = 44,960,382,686.97/234,438.12 - Step 6: Final answer
x = 191,779.32
Related Problems
Find fourth proportional to 117,219.06, 161,774.13 and 69,480.18
Half scale
Find fourth proportional to 468,876.24, 647,096.52 and 277,920.72
Double scale
Find fourth proportional to 234,439.12, 323,549.64 and 138,961.36
Similar ratio
Find fourth proportional to 351,657.18, 485,322.39 and 208,440.54
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.