Finding the Fourth Proportional to 281,293.93, 388,195.49 and 153,969.62
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Solution
The fourth proportional to 281,293.93, 388,195.49 and 153,969.62 is: 212,483.48
Step by Step Solution
- Step 1: Write the proportion equation
281,293.93 : 388,195.49 = 153,969.62 : x - Step 2: Convert to fraction form
281,293.93/388,195.49 = 153,969.62/x - Step 3: Cross multiply
281,293.93x = 388,195.49 × 153,969.62 - Step 4: Simplify right side
281,293.93x = 59,770,311,311.17 - Step 5: Solve for x
x = 59,770,311,311.17/281,293.93 - Step 6: Final answer
x = 212,483.48
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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.