Finding the Fourth Proportional to 122.28, 183.36 and 36.76
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Solution
The fourth proportional to 122.28, 183.36 and 36.76 is: 55.12
Step by Step Solution
- Step 1: Write the proportion equation
122.28 : 183.36 = 36.76 : x - Step 2: Convert to fraction form
122.28/183.36 = 36.76/x - Step 3: Cross multiply
122.28x = 183.36 × 36.76 - Step 4: Simplify right side
122.28x = 6,740.31 - Step 5: Solve for x
x = 6,740.31/122.28 - Step 6: Final answer
x = 55.12
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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.