Finding the Fourth Proportional to 343,891.80, 515,837.70 and 302,419.80
Calculator
Solution
The fourth proportional to 343,891.80, 515,837.70 and 302,419.80 is: 453,629.70
Step by Step Solution
- Step 1: Write the proportion equation
343,891.80 : 515,837.70 = 302,419.80 : x - Step 2: Convert to fraction form
343,891.80/515,837.70 = 302,419.80/x - Step 3: Cross multiply
343,891.80x = 515,837.70 × 302,419.80 - Step 4: Simplify right side
343,891.80x = 155,999,534,066.46 - Step 5: Solve for x
x = 155,999,534,066.46/343,891.80 - Step 6: Final answer
x = 453,629.70
Related Problems
Find fourth proportional to 171,945.90, 257,918.85 and 151,209.90
Half scale
Find fourth proportional to 687,783.60, 1,031,675.40 and 604,839.60
Double scale
Find fourth proportional to 343,892.80, 515,839.20 and 302,420.80
Similar ratio
Find fourth proportional to 515,837.70, 773,756.55 and 453,629.70
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.