Finding the Fourth Proportional to 242,709.21, 334,940.26 and 135,286.05
Calculator
Solution
The fourth proportional to 242,709.21, 334,940.26 and 135,286.05 is: 186,695.61
Step by Step Solution
- Step 1: Write the proportion equation
242,709.21 : 334,940.26 = 135,286.05 : x - Step 2: Convert to fraction form
242,709.21/334,940.26 = 135,286.05/x - Step 3: Cross multiply
242,709.21x = 334,940.26 × 135,286.05 - Step 4: Simplify right side
242,709.21x = 45,312,744,761.37 - Step 5: Solve for x
x = 45,312,744,761.37/242,709.21 - Step 6: Final answer
x = 186,695.61
Related Problems
Find fourth proportional to 121,354.61, 167,470.13 and 67,643.03
Half scale
Find fourth proportional to 485,418.42, 669,880.52 and 270,572.10
Double scale
Find fourth proportional to 242,710.21, 334,941.64 and 135,287.05
Similar ratio
Find fourth proportional to 364,063.82, 502,410.39 and 202,929.08
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.