Finding the Fourth Proportional to 281,514.24, 388,485.36 and 154,189.44
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Solution
The fourth proportional to 281,514.24, 388,485.36 and 154,189.44 is: 212,779.08
Step by Step Solution
- Step 1: Write the proportion equation
281,514.24 : 388,485.36 = 154,189.44 : x - Step 2: Convert to fraction form
281,514.24/388,485.36 = 154,189.44/x - Step 3: Cross multiply
281,514.24x = 388,485.36 × 154,189.44 - Step 4: Simplify right side
281,514.24x = 59,900,340,106.60 - Step 5: Solve for x
x = 59,900,340,106.60/281,514.24 - Step 6: Final answer
x = 212,779.08
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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.