Finding the Fourth Proportional to 325,812.70, 488,805.45 and 115,428.70
Calculator
Solution
The fourth proportional to 325,812.70, 488,805.45 and 115,428.70 is: 173,173.66
Step by Step Solution
- Step 1: Write the proportion equation
325,812.70 : 488,805.45 = 115,428.70 : x - Step 2: Convert to fraction form
325,812.70/488,805.45 = 115,428.70/x - Step 3: Cross multiply
325,812.70x = 488,805.45 × 115,428.70 - Step 4: Simplify right side
325,812.70x = 56,422,177,646.42 - Step 5: Solve for x
x = 56,422,177,646.42/325,812.70 - Step 6: Final answer
x = 173,173.66
Related Problems
Find fourth proportional to 162,906.35, 244,402.73 and 57,714.35
Half scale
Find fourth proportional to 651,625.40, 977,610.90 and 230,857.40
Double scale
Find fourth proportional to 325,813.70, 488,806.95 and 115,429.70
Similar ratio
Find fourth proportional to 488,719.05, 733,208.18 and 173,143.05
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.