Finding the Fourth Proportional to 264,739.80, 397,109.70 and 212,251.80
Calculator
Solution
The fourth proportional to 264,739.80, 397,109.70 and 212,251.80 is: 318,377.70
Step by Step Solution
- Step 1: Write the proportion equation
264,739.80 : 397,109.70 = 212,251.80 : x - Step 2: Convert to fraction form
264,739.80/397,109.70 = 212,251.80/x - Step 3: Cross multiply
264,739.80x = 397,109.70 × 212,251.80 - Step 4: Simplify right side
264,739.80x = 84,287,248,622.46 - Step 5: Solve for x
x = 84,287,248,622.46/264,739.80 - Step 6: Final answer
x = 318,377.70
Related Problems
Find fourth proportional to 132,369.90, 198,554.85 and 106,125.90
Half scale
Find fourth proportional to 529,479.60, 794,219.40 and 424,503.60
Double scale
Find fourth proportional to 264,740.80, 397,111.20 and 212,252.80
Similar ratio
Find fourth proportional to 397,109.70, 595,664.55 and 318,377.70
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.