Finding the Fourth Proportional to 388,390.68, 582,585.84 and 107,907.84
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Solution
The fourth proportional to 388,390.68, 582,585.84 and 107,907.84 is: 161,861.71
Step by Step Solution
- Step 1: Write the proportion equation
388,390.68 : 582,585.84 = 107,907.84 : x - Step 2: Convert to fraction form
388,390.68/582,585.84 = 107,907.84/x - Step 3: Cross multiply
388,390.68x = 582,585.84 × 107,907.84 - Step 4: Simplify right side
388,390.68x = 62,865,579,608.99 - Step 5: Solve for x
x = 62,865,579,608.99/388,390.68 - Step 6: Final answer
x = 161,861.71
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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.