Finding the Fourth Proportional to 231,375.60, 347,149.80 and 91,231.92
Calculator
Solution
The fourth proportional to 231,375.60, 347,149.80 and 91,231.92 is: 136,881.95
Step by Step Solution
- Step 1: Write the proportion equation
231,375.60 : 347,149.80 = 91,231.92 : x - Step 2: Convert to fraction form
231,375.60/347,149.80 = 91,231.92/x - Step 3: Cross multiply
231,375.60x = 347,149.80 × 91,231.92 - Step 4: Simplify right side
231,375.60x = 31,671,142,781.62 - Step 5: Solve for x
x = 31,671,142,781.62/231,375.60 - Step 6: Final answer
x = 136,881.95
Related Problems
Find fourth proportional to 115,687.80, 173,574.90 and 45,615.96
Half scale
Find fourth proportional to 462,751.20, 694,299.60 and 182,463.84
Double scale
Find fourth proportional to 231,376.60, 347,151.30 and 91,232.92
Similar ratio
Find fourth proportional to 347,063.40, 520,724.70 and 136,847.88
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.