Finding the Fourth Proportional to 343,130.40, 515,157.30 and 201,121.20
Calculator
Solution
The fourth proportional to 343,130.40, 515,157.30 and 201,121.20 is: 301,952.42
Step by Step Solution
- Step 1: Write the proportion equation
343,130.40 : 515,157.30 = 201,121.20 : x - Step 2: Convert to fraction form
343,130.40/515,157.30 = 201,121.20/x - Step 3: Cross multiply
343,130.40x = 515,157.30 × 201,121.20 - Step 4: Simplify right side
343,130.40x = 103,609,054,364.76 - Step 5: Solve for x
x = 103,609,054,364.76/343,130.40 - Step 6: Final answer
x = 301,952.42
Related Problems
Find fourth proportional to 171,565.20, 257,578.65 and 100,560.60
Half scale
Find fourth proportional to 686,260.80, 1,030,314.60 and 402,242.40
Double scale
Find fourth proportional to 343,131.40, 515,158.80 and 201,122.20
Similar ratio
Find fourth proportional to 514,695.60, 772,735.95 and 301,681.80
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.