Finding the Fourth Proportional to 293.63, 405.75 and 253.99
Calculator
Solution
The fourth proportional to 293.63, 405.75 and 253.99 is: 350.97
Step by Step Solution
- Step 1: Write the proportion equation
293.63 : 405.75 = 253.99 : x - Step 2: Convert to fraction form
293.63/405.75 = 253.99/x - Step 3: Cross multiply
293.63x = 405.75 × 253.99 - Step 4: Simplify right side
293.63x = 103,054.41 - Step 5: Solve for x
x = 103,054.41/293.63 - Step 6: Final answer
x = 350.97
Related Problems
Find fourth proportional to 146.81, 202.88 and 126.99
Half scale
Find fourth proportional to 587.25, 811.50 and 507.97
Double scale
Find fourth proportional to 294.63, 407.13 and 254.99
Similar ratio
Find fourth proportional to 440.44, 608.63 and 380.98
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.