Finding the Fourth Proportional to 307.94, 462.51 and 297
Calculator
Solution
The fourth proportional to 307.94, 462.51 and 297 is: 446.09
Step by Step Solution
- Step 1: Write the proportion equation
307.94 : 462.51 = 297 : x - Step 2: Convert to fraction form
307.94/462.51 = 297/x - Step 3: Cross multiply
307.94x = 462.51 × 297 - Step 4: Simplify right side
307.94x = 137,365.47 - Step 5: Solve for x
x = 137,365.47/307.94 - Step 6: Final answer
x = 446.09
Related Problems
Find fourth proportional to 153.97, 231.26 and 148.50
Half scale
Find fourth proportional to 615.87, 925.02 and 594
Double scale
Find fourth proportional to 308.94, 464.01 and 298
Similar ratio
Find fourth proportional to 461.90, 693.77 and 445.50
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.