Finding the Fourth Proportional to 236,713.62, 326,659.75 and 129,284.08
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Solution
The fourth proportional to 236,713.62, 326,659.75 and 129,284.08 is: 178,409.28
Step by Step Solution
- Step 1: Write the proportion equation
236,713.62 : 326,659.75 = 129,284.08 : x - Step 2: Convert to fraction form
236,713.62/326,659.75 = 129,284.08/x - Step 3: Cross multiply
236,713.62x = 326,659.75 × 129,284.08 - Step 4: Simplify right side
236,713.62x = 42,231,906,676.60 - Step 5: Solve for x
x = 42,231,906,676.60/236,713.62 - Step 6: Final answer
x = 178,409.28
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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.