Finding the Fourth Proportional to 388,509.18, 582,847.14 and 220,110.18
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Solution
The fourth proportional to 388,509.18, 582,847.14 and 220,110.18 is: 330,212.50
Step by Step Solution
- Step 1: Write the proportion equation
388,509.18 : 582,847.14 = 220,110.18 : x - Step 2: Convert to fraction form
388,509.18/582,847.14 = 220,110.18/x - Step 3: Cross multiply
388,509.18x = 582,847.14 × 220,110.18 - Step 4: Simplify right side
388,509.18x = 128,290,587,537.62 - Step 5: Solve for x
x = 128,290,587,537.62/388,509.18 - Step 6: Final answer
x = 330,212.50
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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.