Finding the Fourth Proportional to 388,634.18, 582,912.99 and 135,868.01
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Solution
The fourth proportional to 388,634.18, 582,912.99 and 135,868.01 is: 203,788.63
Step by Step Solution
- Step 1: Write the proportion equation
388,634.18 : 582,912.99 = 135,868.01 : x - Step 2: Convert to fraction form
388,634.18/582,912.99 = 135,868.01/x - Step 3: Cross multiply
388,634.18x = 582,912.99 × 135,868.01 - Step 4: Simplify right side
388,634.18x = 79,199,225,039.89 - Step 5: Solve for x
x = 79,199,225,039.89/388,634.18 - Step 6: Final answer
x = 203,788.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.