Finding the Fourth Proportional to 262,970.40, 394,054.18 and 156,143.99
Calculator
Solution
The fourth proportional to 262,970.40, 394,054.18 and 156,143.99 is: 233,977.62
Step by Step Solution
- Step 1: Write the proportion equation
262,970.40 : 394,054.18 = 156,143.99 : x - Step 2: Convert to fraction form
262,970.40/394,054.18 = 156,143.99/x - Step 3: Cross multiply
262,970.40x = 394,054.18 × 156,143.99 - Step 4: Simplify right side
262,970.40x = 61,529,189,190.39 - Step 5: Solve for x
x = 61,529,189,190.39/262,970.40 - Step 6: Final answer
x = 233,977.62
Related Problems
Find fourth proportional to 131,485.20, 197,027.09 and 78,071.99
Half scale
Find fourth proportional to 525,940.80, 788,108.35 and 312,287.97
Double scale
Find fourth proportional to 262,971.40, 394,055.67 and 156,144.99
Similar ratio
Find fourth proportional to 394,455.60, 591,081.26 and 234,215.98
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.