Finding the Fourth Proportional to 263,517.21, 363,652.08 and 142,657.62
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Solution
The fourth proportional to 263,517.21, 363,652.08 and 142,657.62 is: 196,866.61
Step by Step Solution
- Step 1: Write the proportion equation
263,517.21 : 363,652.08 = 142,657.62 : x - Step 2: Convert to fraction form
263,517.21/363,652.08 = 142,657.62/x - Step 3: Cross multiply
263,517.21x = 363,652.08 × 142,657.62 - Step 4: Simplify right side
263,517.21x = 51,877,740,240.85 - Step 5: Solve for x
x = 51,877,740,240.85/263,517.21 - Step 6: Final answer
x = 196,866.61
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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.