Finding the Fourth Proportional to 236,910.94, 326,935.92 and 129,478.48
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Solution
The fourth proportional to 236,910.94, 326,935.92 and 129,478.48 is: 178,679.66
Step by Step Solution
- Step 1: Write the proportion equation
236,910.94 : 326,935.92 = 129,478.48 : x - Step 2: Convert to fraction form
236,910.94/326,935.92 = 129,478.48/x - Step 3: Cross multiply
236,910.94x = 326,935.92 × 129,478.48 - Step 4: Simplify right side
236,910.94x = 42,331,165,979.00 - Step 5: Solve for x
x = 42,331,165,979.00/236,910.94 - Step 6: Final answer
x = 178,679.66
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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.