Finding the Fourth Proportional to 174,784.32, 260,990.88 and 138,842.19
Calculator
Solution
The fourth proportional to 174,784.32, 260,990.88 and 138,842.19 is: 207,321.49
Step by Step Solution
- Step 1: Write the proportion equation
174,784.32 : 260,990.88 = 138,842.19 : x - Step 2: Convert to fraction form
174,784.32/260,990.88 = 138,842.19/x - Step 3: Cross multiply
174,784.32x = 260,990.88 × 138,842.19 - Step 4: Simplify right side
174,784.32x = 36,236,545,349.23 - Step 5: Solve for x
x = 36,236,545,349.23/174,784.32 - Step 6: Final answer
x = 207,321.49
Related Problems
Find fourth proportional to 87,392.16, 130,495.44 and 69,421.10
Half scale
Find fourth proportional to 349,568.64, 521,981.76 and 277,684.38
Double scale
Find fourth proportional to 174,785.32, 260,992.37 and 138,843.19
Similar ratio
Find fourth proportional to 262,176.48, 391,486.32 and 208,263.29
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.