Finding the Fourth Proportional to 197,724.82, 272,858.82 and 107,078.70
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Solution
The fourth proportional to 197,724.82, 272,858.82 and 107,078.70 is: 147,767.83
Step by Step Solution
- Step 1: Write the proportion equation
197,724.82 : 272,858.82 = 107,078.70 : x - Step 2: Convert to fraction form
197,724.82/272,858.82 = 107,078.70/x - Step 3: Cross multiply
197,724.82x = 272,858.82 × 107,078.70 - Step 4: Simplify right side
197,724.82x = 29,217,367,729.13 - Step 5: Solve for x
x = 29,217,367,729.13/197,724.82 - Step 6: Final answer
x = 147,767.83
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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.