Finding the Fourth Proportional to 190,396.44, 285,283.08 and 115,539.60
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Solution
The fourth proportional to 190,396.44, 285,283.08 and 115,539.60 is: 173,120.32
Step by Step Solution
- Step 1: Write the proportion equation
190,396.44 : 285,283.08 = 115,539.60 : x - Step 2: Convert to fraction form
190,396.44/285,283.08 = 115,539.60/x - Step 3: Cross multiply
190,396.44x = 285,283.08 × 115,539.60 - Step 4: Simplify right side
190,396.44x = 32,961,492,949.97 - Step 5: Solve for x
x = 32,961,492,949.97/190,396.44 - Step 6: Final answer
x = 173,120.32
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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.