Finding the Fourth Proportional to 300,837.70, 415,157.16 and 173,513.80
Calculator
Solution
The fourth proportional to 300,837.70, 415,157.16 and 173,513.80 is: 239,449.70
Step by Step Solution
- Step 1: Write the proportion equation
300,837.70 : 415,157.16 = 173,513.80 : x - Step 2: Convert to fraction form
300,837.70/415,157.16 = 173,513.80/x - Step 3: Cross multiply
300,837.70x = 415,157.16 × 173,513.80 - Step 4: Simplify right side
300,837.70x = 72,035,496,428.81 - Step 5: Solve for x
x = 72,035,496,428.81/300,837.70 - Step 6: Final answer
x = 239,449.70
Related Problems
Find fourth proportional to 150,418.85, 207,578.58 and 86,756.90
Half scale
Find fourth proportional to 601,675.40, 830,314.32 and 347,027.60
Double scale
Find fourth proportional to 300,838.70, 415,158.54 and 173,514.80
Similar ratio
Find fourth proportional to 451,256.55, 622,735.74 and 260,270.70
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.