Finding the Fourth Proportional to 1,067.68, 1,601.34 and 298
Calculator
Solution
The fourth proportional to 1,067.68, 1,601.34 and 298 is: 446.95
Step by Step Solution
- Step 1: Write the proportion equation
1,067.68 : 1,601.34 = 298 : x - Step 2: Convert to fraction form
1,067.68/1,601.34 = 298/x - Step 3: Cross multiply
1,067.68x = 1,601.34 × 298 - Step 4: Simplify right side
1,067.68x = 477,199.32 - Step 5: Solve for x
x = 477,199.32/1,067.68 - Step 6: Final answer
x = 446.95
Related Problems
Find fourth proportional to 533.84, 800.67 and 149
Half scale
Find fourth proportional to 2,135.36, 3,202.68 and 596
Double scale
Find fourth proportional to 1,068.68, 1,602.84 and 299
Similar ratio
Find fourth proportional to 1,601.52, 2,402.01 and 447
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.