Finding the Fourth Proportional to 128,202.44, 192,321.88 and 39,463.28
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Solution
The fourth proportional to 128,202.44, 192,321.88 and 39,463.28 is: 59,200.53
Step by Step Solution
- Step 1: Write the proportion equation
128,202.44 : 192,321.88 = 39,463.28 : x - Step 2: Convert to fraction form
128,202.44/192,321.88 = 39,463.28/x - Step 3: Cross multiply
128,202.44x = 192,321.88 × 39,463.28 - Step 4: Simplify right side
128,202.44x = 7,589,652,200.57 - Step 5: Solve for x
x = 7,589,652,200.57/128,202.44 - Step 6: Final answer
x = 59,200.53
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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.