Finding the Fourth Proportional to 231,357.76, 319,271.48 and 129,382.08
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Solution
The fourth proportional to 231,357.76, 319,271.48 and 129,382.08 is: 178,546.02
Step by Step Solution
- Step 1: Write the proportion equation
231,357.76 : 319,271.48 = 129,382.08 : x - Step 2: Convert to fraction form
231,357.76/319,271.48 = 129,382.08/x - Step 3: Cross multiply
231,357.76x = 319,271.48 × 129,382.08 - Step 4: Simplify right side
231,357.76x = 41,308,008,167.08 - Step 5: Solve for x
x = 41,308,008,167.08/231,357.76 - Step 6: Final answer
x = 178,546.02
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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.