Finding the Fourth Proportional to 155.44, 232.84 and 107.28
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Solution
The fourth proportional to 155.44, 232.84 and 107.28 is: 160.70
Step by Step Solution
- Step 1: Write the proportion equation
155.44 : 232.84 = 107.28 : x - Step 2: Convert to fraction form
155.44/232.84 = 107.28/x - Step 3: Cross multiply
155.44x = 232.84 × 107.28 - Step 4: Simplify right side
155.44x = 24,979.08 - Step 5: Solve for x
x = 24,979.08/155.44 - Step 6: Final answer
x = 160.70
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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.