Finding the Fourth Proportional to 330,031.05, 455,441.70 and 179,128.05
Calculator
Solution
The fourth proportional to 330,031.05, 455,441.70 and 179,128.05 is: 247,196.09
Step by Step Solution
- Step 1: Write the proportion equation
330,031.05 : 455,441.70 = 179,128.05 : x - Step 2: Convert to fraction form
330,031.05/455,441.70 = 179,128.05/x - Step 3: Cross multiply
330,031.05x = 455,441.70 × 179,128.05 - Step 4: Simplify right side
330,031.05x = 81,582,383,609.69 - Step 5: Solve for x
x = 81,582,383,609.69/330,031.05 - Step 6: Final answer
x = 247,196.09
Related Problems
Find fourth proportional to 165,015.53, 227,720.85 and 89,564.03
Half scale
Find fourth proportional to 660,062.10, 910,883.40 and 358,256.10
Double scale
Find fourth proportional to 330,032.05, 455,443.08 and 179,129.05
Similar ratio
Find fourth proportional to 495,046.58, 683,162.55 and 268,692.08
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.