Finding the Fourth Proportional to 263,432.25, 394,832.88 and 135,216.95
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Solution
The fourth proportional to 263,432.25, 394,832.88 and 135,216.95 is: 202,663.48
Step by Step Solution
- Step 1: Write the proportion equation
263,432.25 : 394,832.88 = 135,216.95 : x - Step 2: Convert to fraction form
263,432.25/394,832.88 = 135,216.95/x - Step 3: Cross multiply
263,432.25x = 394,832.88 × 135,216.95 - Step 4: Simplify right side
263,432.25x = 53,388,095,819.15 - Step 5: Solve for x
x = 53,388,095,819.15/263,432.25 - Step 6: Final answer
x = 202,663.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.