Finding the Fourth Proportional to 251,979.40, 377,531.70 and 163,187.20
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Solution
The fourth proportional to 251,979.40, 377,531.70 and 163,187.20 is: 244,497.53
Step by Step Solution
- Step 1: Write the proportion equation
251,979.40 : 377,531.70 = 163,187.20 : x - Step 2: Convert to fraction form
251,979.40/377,531.70 = 163,187.20/x - Step 3: Cross multiply
251,979.40x = 377,531.70 × 163,187.20 - Step 4: Simplify right side
251,979.40x = 61,608,341,034.24 - Step 5: Solve for x
x = 61,608,341,034.24/251,979.40 - Step 6: Final answer
x = 244,497.53
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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.