Finding the Fourth Proportional to 359.64, 496.68 and 320.99
Calculator
Solution
The fourth proportional to 359.64, 496.68 and 320.99 is: 443.29
Step by Step Solution
- Step 1: Write the proportion equation
359.64 : 496.68 = 320.99 : x - Step 2: Convert to fraction form
359.64/496.68 = 320.99/x - Step 3: Cross multiply
359.64x = 496.68 × 320.99 - Step 4: Simplify right side
359.64x = 159,425.63 - Step 5: Solve for x
x = 159,425.63/359.64 - Step 6: Final answer
x = 443.29
Related Problems
Find fourth proportional to 179.82, 248.34 and 160.49
Half scale
Find fourth proportional to 719.28, 993.35 and 641.97
Double scale
Find fourth proportional to 360.64, 498.06 and 321.99
Similar ratio
Find fourth proportional to 539.46, 745.01 and 481.48
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.