Finding the Fourth Proportional to 178,084.26, 267,257.07 and 143,442.18
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Solution
The fourth proportional to 178,084.26, 267,257.07 and 143,442.18 is: 215,268.53
Step by Step Solution
- Step 1: Write the proportion equation
178,084.26 : 267,257.07 = 143,442.18 : x - Step 2: Convert to fraction form
178,084.26/267,257.07 = 143,442.18/x - Step 3: Cross multiply
178,084.26x = 267,257.07 × 143,442.18 - Step 4: Simplify right side
178,084.26x = 38,335,936,741.21 - Step 5: Solve for x
x = 38,335,936,741.21/178,084.26 - Step 6: Final answer
x = 215,268.53
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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.