Finding the Fourth Proportional to 476, 656.88 and 269
Calculator
Solution
The fourth proportional to 476, 656.88 and 269 is: 371.22
Step by Step Solution
- Step 1: Write the proportion equation
476 : 656.88 = 269 : x - Step 2: Convert to fraction form
476/656.88 = 269/x - Step 3: Cross multiply
476x = 656.88 × 269 - Step 4: Simplify right side
476x = 176,700.72 - Step 5: Solve for x
x = 176,700.72/476 - Step 6: Final answer
x = 371.22
Related Problems
Find fourth proportional to 238, 328.44 and 134.50
Half scale
Find fourth proportional to 952, 1,313.76 and 538
Double scale
Find fourth proportional to 477, 658.26 and 270
Similar ratio
Find fourth proportional to 714, 985.32 and 403.50
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.