Finding the Fourth Proportional to 267,761.19, 401,389.22 and 90,143.99
Calculator
Solution
The fourth proportional to 267,761.19, 401,389.22 and 90,143.99 is: 135,130.95
Step by Step Solution
- Step 1: Write the proportion equation
267,761.19 : 401,389.22 = 90,143.99 : x - Step 2: Convert to fraction form
267,761.19/401,389.22 = 90,143.99/x - Step 3: Cross multiply
267,761.19x = 401,389.22 × 90,143.99 - Step 4: Simplify right side
267,761.19x = 36,182,825,557.41 - Step 5: Solve for x
x = 36,182,825,557.41/267,761.19 - Step 6: Final answer
x = 135,130.95
Related Problems
Find fourth proportional to 133,880.60, 200,694.61 and 45,071.99
Half scale
Find fourth proportional to 535,522.39, 802,778.45 and 180,287.98
Double scale
Find fourth proportional to 267,762.19, 401,390.72 and 90,144.99
Similar ratio
Find fourth proportional to 401,641.79, 602,083.83 and 135,215.98
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.