Finding the Fourth Proportional to 122.13, 183.28 and 49.99
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Solution
The fourth proportional to 122.13, 183.28 and 49.99 is: 75.02
Step by Step Solution
- Step 1: Write the proportion equation
122.13 : 183.28 = 49.99 : x - Step 2: Convert to fraction form
122.13/183.28 = 49.99/x - Step 3: Cross multiply
122.13x = 183.28 × 49.99 - Step 4: Simplify right side
122.13x = 9,162.33 - Step 5: Solve for x
x = 9,162.33/122.13 - Step 6: Final answer
x = 75.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.