Finding the Fourth Proportional to 224,639.08, 310,018.26 and 129,175.72
Calculator
Solution
The fourth proportional to 224,639.08, 310,018.26 and 129,175.72 is: 178,271.88
Step by Step Solution
- Step 1: Write the proportion equation
224,639.08 : 310,018.26 = 129,175.72 : x - Step 2: Convert to fraction form
224,639.08/310,018.26 = 129,175.72/x - Step 3: Cross multiply
224,639.08x = 310,018.26 × 129,175.72 - Step 4: Simplify right side
224,639.08x = 40,046,831,948.65 - Step 5: Solve for x
x = 40,046,831,948.65/224,639.08 - Step 6: Final answer
x = 178,271.88
Related Problems
Find fourth proportional to 112,319.54, 155,009.13 and 64,587.86
Half scale
Find fourth proportional to 449,278.16, 620,036.52 and 258,351.44
Double scale
Find fourth proportional to 224,640.08, 310,019.64 and 129,176.72
Similar ratio
Find fourth proportional to 336,958.62, 465,027.39 and 193,763.58
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.