Finding the Fourth Proportional to 345,484.84, 518,296.92 and 145,805.44
Calculator
Solution
The fourth proportional to 345,484.84, 518,296.92 and 145,805.44 is: 218,737.56
Step by Step Solution
- Step 1: Write the proportion equation
345,484.84 : 518,296.92 = 145,805.44 : x - Step 2: Convert to fraction form
345,484.84/518,296.92 = 145,805.44/x - Step 3: Cross multiply
345,484.84x = 518,296.92 × 145,805.44 - Step 4: Simplify right side
345,484.84x = 75,570,510,471.24 - Step 5: Solve for x
x = 75,570,510,471.24/345,484.84 - Step 6: Final answer
x = 218,737.56
Related Problems
Find fourth proportional to 172,742.42, 259,148.46 and 72,902.72
Half scale
Find fourth proportional to 690,969.68, 1,036,593.84 and 291,610.88
Double scale
Find fourth proportional to 345,485.84, 518,298.42 and 145,806.44
Similar ratio
Find fourth proportional to 518,227.26, 777,445.38 and 218,708.16
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.