Finding the Fourth Proportional to 236,631.39, 326,548.85 and 129,201.09
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Solution
The fourth proportional to 236,631.39, 326,548.85 and 129,201.09 is: 178,296.15
Step by Step Solution
- Step 1: Write the proportion equation
236,631.39 : 326,548.85 = 129,201.09 : x - Step 2: Convert to fraction form
236,631.39/326,548.85 = 129,201.09/x - Step 3: Cross multiply
236,631.39x = 326,548.85 × 129,201.09 - Step 4: Simplify right side
236,631.39x = 42,190,466,712.24 - Step 5: Solve for x
x = 42,190,466,712.24/236,631.39 - Step 6: Final answer
x = 178,296.15
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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.