Finding the Fourth Proportional to 237,408.70, 327,621.97 and 128,512.50
Calculator
Solution
The fourth proportional to 237,408.70, 327,621.97 and 128,512.50 is: 177,346.15
Step by Step Solution
- Step 1: Write the proportion equation
237,408.70 : 327,621.97 = 128,512.50 : x - Step 2: Convert to fraction form
237,408.70/327,621.97 = 128,512.50/x - Step 3: Cross multiply
237,408.70x = 327,621.97 × 128,512.50 - Step 4: Simplify right side
237,408.70x = 42,103,517,550.24 - Step 5: Solve for x
x = 42,103,517,550.24/237,408.70 - Step 6: Final answer
x = 177,346.15
Related Problems
Find fourth proportional to 118,704.35, 163,810.98 and 64,256.25
Half scale
Find fourth proportional to 474,817.39, 655,243.93 and 257,025.00
Double scale
Find fourth proportional to 237,409.70, 327,623.35 and 128,513.50
Similar ratio
Find fourth proportional to 356,113.04, 491,432.95 and 192,768.75
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.