Finding the Fourth Proportional to 238,171.19, 356,789.68 and 138,121.19
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Solution
The fourth proportional to 238,171.19, 356,789.68 and 138,121.19 is: 206,910.90
Step by Step Solution
- Step 1: Write the proportion equation
238,171.19 : 356,789.68 = 138,121.19 : x - Step 2: Convert to fraction form
238,171.19/356,789.68 = 138,121.19/x - Step 3: Cross multiply
238,171.19x = 356,789.68 × 138,121.19 - Step 4: Simplify right side
238,171.19x = 49,280,215,181.32 - Step 5: Solve for x
x = 49,280,215,181.32/238,171.19 - Step 6: Final answer
x = 206,910.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.