Finding the Fourth Proportional to 327,123.53, 489,897.95 and 221,622.65
Calculator
Solution
The fourth proportional to 327,123.53, 489,897.95 and 221,622.65 is: 331,900.55
Step by Step Solution
- Step 1: Write the proportion equation
327,123.53 : 489,897.95 = 221,622.65 : x - Step 2: Convert to fraction form
327,123.53/489,897.95 = 221,622.65/x - Step 3: Cross multiply
327,123.53x = 489,897.95 × 221,622.65 - Step 4: Simplify right side
327,123.53x = 108,572,478,350.97 - Step 5: Solve for x
x = 108,572,478,350.97/327,123.53 - Step 6: Final answer
x = 331,900.55
Related Problems
Find fourth proportional to 163,561.76, 244,948.97 and 110,811.32
Half scale
Find fourth proportional to 654,247.05, 979,795.89 and 443,245.29
Double scale
Find fourth proportional to 327,124.53, 489,899.44 and 221,623.65
Similar ratio
Find fourth proportional to 490,685.29, 734,846.92 and 332,433.97
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.