Finding the Fourth Proportional to 321,590.85, 443,431.93 and 205,148.99
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Solution
The fourth proportional to 321,590.85, 443,431.93 and 205,148.99 is: 282,873.76
Step by Step Solution
- Step 1: Write the proportion equation
321,590.85 : 443,431.93 = 205,148.99 : x - Step 2: Convert to fraction form
321,590.85/443,431.93 = 205,148.99/x - Step 3: Cross multiply
321,590.85x = 443,431.93 × 205,148.99 - Step 4: Simplify right side
321,590.85x = 90,969,612,573.25 - Step 5: Solve for x
x = 90,969,612,573.25/321,590.85 - Step 6: Final answer
x = 282,873.76
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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.