Finding the Fourth Proportional to 421,907.58, 582,234.01 and 228,315.26
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Solution
The fourth proportional to 421,907.58, 582,234.01 and 228,315.26 is: 315,075.90
Step by Step Solution
- Step 1: Write the proportion equation
421,907.58 : 582,234.01 = 228,315.26 : x - Step 2: Convert to fraction form
421,907.58/582,234.01 = 228,315.26/x - Step 3: Cross multiply
421,907.58x = 582,234.01 × 228,315.26 - Step 4: Simplify right side
421,907.58x = 132,932,910,258.79 - Step 5: Solve for x
x = 132,932,910,258.79/421,907.58 - Step 6: Final answer
x = 315,075.90
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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.