Finding the Fourth Proportional to 263,687.49, 363,888.75 and 142,828.82
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Solution
The fourth proportional to 263,687.49, 363,888.75 and 142,828.82 is: 197,103.78
Step by Step Solution
- Step 1: Write the proportion equation
263,687.49 : 363,888.75 = 142,828.82 : x - Step 2: Convert to fraction form
263,687.49/363,888.75 = 142,828.82/x - Step 3: Cross multiply
263,687.49x = 363,888.75 × 142,828.82 - Step 4: Simplify right side
263,687.49x = 51,973,800,773.78 - Step 5: Solve for x
x = 51,973,800,773.78/263,687.49 - Step 6: Final answer
x = 197,103.78
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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.