Finding the Fourth Proportional to 236,604.39, 326,519.01 and 129,178.95
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Solution
The fourth proportional to 236,604.39, 326,519.01 and 129,178.95 is: 178,269.65
Step by Step Solution
- Step 1: Write the proportion equation
236,604.39 : 326,519.01 = 129,178.95 : x - Step 2: Convert to fraction form
236,604.39/326,519.01 = 129,178.95/x - Step 3: Cross multiply
236,604.39x = 326,519.01 × 129,178.95 - Step 4: Simplify right side
236,604.39x = 42,179,382,866.84 - Step 5: Solve for x
x = 42,179,382,866.84/236,604.39 - Step 6: Final answer
x = 178,269.65
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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.