Finding the Fourth Proportional to 470.44, 649.19 and 260.63
Calculator
Solution
The fourth proportional to 470.44, 649.19 and 260.63 is: 359.66
Step by Step Solution
- Step 1: Write the proportion equation
470.44 : 649.19 = 260.63 : x - Step 2: Convert to fraction form
470.44/649.19 = 260.63/x - Step 3: Cross multiply
470.44x = 649.19 × 260.63 - Step 4: Simplify right side
470.44x = 169,197.01 - Step 5: Solve for x
x = 169,197.01/470.44 - Step 6: Final answer
x = 359.66
Related Problems
Find fourth proportional to 235.22, 324.60 and 130.31
Half scale
Find fourth proportional to 940.88, 1,298.39 and 521.25
Double scale
Find fourth proportional to 471.44, 650.57 and 261.63
Similar ratio
Find fourth proportional to 705.66, 973.79 and 390.94
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.