Finding the Fourth Proportional to 263,644.08, 363,829.92 and 142,786.80
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Solution
The fourth proportional to 263,644.08, 363,829.92 and 142,786.80 is: 197,046.37
Step by Step Solution
- Step 1: Write the proportion equation
263,644.08 : 363,829.92 = 142,786.80 : x - Step 2: Convert to fraction form
263,644.08/363,829.92 = 142,786.80/x - Step 3: Cross multiply
263,644.08x = 363,829.92 × 142,786.80 - Step 4: Simplify right side
263,644.08x = 51,950,110,021.06 - Step 5: Solve for x
x = 51,950,110,021.06/263,644.08 - Step 6: Final answer
x = 197,046.37
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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.