Finding the Fourth Proportional to 299,760.48, 412,893.36 and 208,954.08
Calculator
Solution
The fourth proportional to 299,760.48, 412,893.36 and 208,954.08 is: 287,815.63
Step by Step Solution
- Step 1: Write the proportion equation
299,760.48 : 412,893.36 = 208,954.08 : x - Step 2: Convert to fraction form
299,760.48/412,893.36 = 208,954.08/x - Step 3: Cross multiply
299,760.48x = 412,893.36 × 208,954.08 - Step 4: Simplify right side
299,760.48x = 86,275,752,176.91 - Step 5: Solve for x
x = 86,275,752,176.91/299,760.48 - Step 6: Final answer
x = 287,815.63
Related Problems
Find fourth proportional to 149,880.24, 206,446.68 and 104,477.04
Half scale
Find fourth proportional to 599,520.96, 825,786.72 and 417,908.16
Double scale
Find fourth proportional to 299,761.48, 412,894.74 and 208,955.08
Similar ratio
Find fourth proportional to 449,640.72, 619,340.04 and 313,431.12
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.