Finding the Fourth Proportional to 238,391.64, 328,979.22 and 129,495.08
Calculator
Solution
The fourth proportional to 238,391.64, 328,979.22 and 129,495.08 is: 178,702.54
Step by Step Solution
- Step 1: Write the proportion equation
238,391.64 : 328,979.22 = 129,495.08 : x - Step 2: Convert to fraction form
238,391.64/328,979.22 = 129,495.08/x - Step 3: Cross multiply
238,391.64x = 328,979.22 × 129,495.08 - Step 4: Simplify right side
238,391.64x = 42,601,190,412.24 - Step 5: Solve for x
x = 42,601,190,412.24/238,391.64 - Step 6: Final answer
x = 178,702.54
Related Problems
Find fourth proportional to 119,195.82, 164,489.61 and 64,747.54
Half scale
Find fourth proportional to 476,783.28, 657,958.44 and 258,990.16
Double scale
Find fourth proportional to 238,392.64, 328,980.60 and 129,496.08
Similar ratio
Find fourth proportional to 357,587.46, 493,468.83 and 194,242.62
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.