Finding the Fourth Proportional to 466.15, 643.26 and 266.96
Calculator
Solution
The fourth proportional to 466.15, 643.26 and 266.96 is: 368.39
Step by Step Solution
- Step 1: Write the proportion equation
466.15 : 643.26 = 266.96 : x - Step 2: Convert to fraction form
466.15/643.26 = 266.96/x - Step 3: Cross multiply
466.15x = 643.26 × 266.96 - Step 4: Simplify right side
466.15x = 171,723.99 - Step 5: Solve for x
x = 171,723.99/466.15 - Step 6: Final answer
x = 368.39
Related Problems
Find fourth proportional to 233.08, 321.63 and 133.48
Half scale
Find fourth proportional to 932.30, 1,286.52 and 533.92
Double scale
Find fourth proportional to 467.15, 644.64 and 267.96
Similar ratio
Find fourth proportional to 699.23, 964.89 and 400.44
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.