Finding the Fourth Proportional to 281,370.11, 388,290.75 and 154,045.70
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Solution
The fourth proportional to 281,370.11, 388,290.75 and 154,045.70 is: 212,583.07
Step by Step Solution
- Step 1: Write the proportion equation
281,370.11 : 388,290.75 = 154,045.70 : x - Step 2: Convert to fraction form
281,370.11/388,290.75 = 154,045.70/x - Step 3: Cross multiply
281,370.11x = 388,290.75 × 154,045.70 - Step 4: Simplify right side
281,370.11x = 59,814,519,324.24 - Step 5: Solve for x
x = 59,814,519,324.24/281,370.11 - Step 6: Final answer
x = 212,583.07
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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.