Finding the Fourth Proportional to 238,707.67, 329,420.60 and 136,742.05
Calculator
Solution
The fourth proportional to 238,707.67, 329,420.60 and 136,742.05 is: 188,706.33
Step by Step Solution
- Step 1: Write the proportion equation
238,707.67 : 329,420.60 = 136,742.05 : x - Step 2: Convert to fraction form
238,707.67/329,420.60 = 136,742.05/x - Step 3: Cross multiply
238,707.67x = 329,420.60 × 136,742.05 - Step 4: Simplify right side
238,707.67x = 45,045,648,156.23 - Step 5: Solve for x
x = 45,045,648,156.23/238,707.67 - Step 6: Final answer
x = 188,706.33
Related Problems
Find fourth proportional to 119,353.84, 164,710.30 and 68,371.03
Half scale
Find fourth proportional to 477,415.34, 658,841.20 and 273,484.10
Double scale
Find fourth proportional to 238,708.67, 329,421.98 and 136,743.05
Similar ratio
Find fourth proportional to 358,061.51, 494,130.90 and 205,113.08
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.