Finding the Fourth Proportional to 281,681.16, 422,517.76 and 68,450.64
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Solution
The fourth proportional to 281,681.16, 422,517.76 and 68,450.64 is: 102,674.99
Step by Step Solution
- Step 1: Write the proportion equation
281,681.16 : 422,517.76 = 68,450.64 : x - Step 2: Convert to fraction form
281,681.16/422,517.76 = 68,450.64/x - Step 3: Cross multiply
281,681.16x = 422,517.76 × 68,450.64 - Step 4: Simplify right side
281,681.16x = 28,921,611,083.37 - Step 5: Solve for x
x = 28,921,611,083.37/281,681.16 - Step 6: Final answer
x = 102,674.99
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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.