Finding the Fourth Proportional to 203,486.12, 280,843.64 and 118,586.80
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Solution
The fourth proportional to 203,486.12, 280,843.64 and 118,586.80 is: 163,668.90
Step by Step Solution
- Step 1: Write the proportion equation
203,486.12 : 280,843.64 = 118,586.80 : x - Step 2: Convert to fraction form
203,486.12/280,843.64 = 118,586.80/x - Step 3: Cross multiply
203,486.12x = 280,843.64 × 118,586.80 - Step 4: Simplify right side
203,486.12x = 33,304,348,567.95 - Step 5: Solve for x
x = 33,304,348,567.95/203,486.12 - Step 6: Final answer
x = 163,668.90
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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.