Finding the Fourth Proportional to 394,937.68, 545,043.24 and 225,176.08
Calculator
Solution
The fourth proportional to 394,937.68, 545,043.24 and 225,176.08 is: 310,759.66
Step by Step Solution
- Step 1: Write the proportion equation
394,937.68 : 545,043.24 = 225,176.08 : x - Step 2: Convert to fraction form
394,937.68/545,043.24 = 225,176.08/x - Step 3: Cross multiply
394,937.68x = 545,043.24 × 225,176.08 - Step 4: Simplify right side
394,937.68x = 122,730,700,213.70 - Step 5: Solve for x
x = 122,730,700,213.70/394,937.68 - Step 6: Final answer
x = 310,759.66
Related Problems
Find fourth proportional to 197,468.84, 272,521.62 and 112,588.04
Half scale
Find fourth proportional to 789,875.36, 1,090,086.48 and 450,352.16
Double scale
Find fourth proportional to 394,938.68, 545,044.62 and 225,177.08
Similar ratio
Find fourth proportional to 592,406.52, 817,564.86 and 337,764.12
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.