Finding the Fourth Proportional to 321,907.95, 482,861.97 and 122,228.49
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Solution
The fourth proportional to 321,907.95, 482,861.97 and 122,228.49 is: 183,342.75
Step by Step Solution
- Step 1: Write the proportion equation
321,907.95 : 482,861.97 = 122,228.49 : x - Step 2: Convert to fraction form
321,907.95/482,861.97 = 122,228.49/x - Step 3: Cross multiply
321,907.95x = 482,861.97 × 122,228.49 - Step 4: Simplify right side
321,907.95x = 59,019,489,471.53 - Step 5: Solve for x
x = 59,019,489,471.53/321,907.95 - Step 6: Final answer
x = 183,342.75
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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.