Finding the Fourth Proportional to 234,909.70, 352,364.55 and 209,321.80
Calculator
Solution
The fourth proportional to 234,909.70, 352,364.55 and 209,321.80 is: 313,982.70
Step by Step Solution
- Step 1: Write the proportion equation
234,909.70 : 352,364.55 = 209,321.80 : x - Step 2: Convert to fraction form
234,909.70/352,364.55 = 209,321.80/x - Step 3: Cross multiply
234,909.70x = 352,364.55 × 209,321.80 - Step 4: Simplify right side
234,909.70x = 73,757,581,862.19 - Step 5: Solve for x
x = 73,757,581,862.19/234,909.70 - Step 6: Final answer
x = 313,982.70
Related Problems
Find fourth proportional to 117,454.85, 176,182.28 and 104,660.90
Half scale
Find fourth proportional to 469,819.40, 704,729.10 and 418,643.60
Double scale
Find fourth proportional to 234,910.70, 352,366.05 and 209,322.80
Similar ratio
Find fourth proportional to 352,364.55, 528,546.83 and 313,982.70
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.