Finding the Fourth Proportional to 300,121.30, 414,203.14 and 172,821.70
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Solution
The fourth proportional to 300,121.30, 414,203.14 and 172,821.70 is: 238,514.53
Step by Step Solution
- Step 1: Write the proportion equation
300,121.30 : 414,203.14 = 172,821.70 : x - Step 2: Convert to fraction form
300,121.30/414,203.14 = 172,821.70/x - Step 3: Cross multiply
300,121.30x = 414,203.14 × 172,821.70 - Step 4: Simplify right side
300,121.30x = 71,583,290,800.14 - Step 5: Solve for x
x = 71,583,290,800.14/300,121.30 - Step 6: Final answer
x = 238,514.53
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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.