Finding the Fourth Proportional to 121.95, 182.97 and 49.79
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Solution
The fourth proportional to 121.95, 182.97 and 49.79 is: 74.71
Step by Step Solution
- Step 1: Write the proportion equation
121.95 : 182.97 = 49.79 : x - Step 2: Convert to fraction form
121.95/182.97 = 49.79/x - Step 3: Cross multiply
121.95x = 182.97 × 49.79 - Step 4: Simplify right side
121.95x = 9,110.53 - Step 5: Solve for x
x = 9,110.53/121.95 - Step 6: Final answer
x = 74.71
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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.