Finding the Fourth Proportional to 381.24, 571.93 and 121.23
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Solution
The fourth proportional to 381.24, 571.93 and 121.23 is: 181.87
Step by Step Solution
- Step 1: Write the proportion equation
381.24 : 571.93 = 121.23 : x - Step 2: Convert to fraction form
381.24/571.93 = 121.23/x - Step 3: Cross multiply
381.24x = 571.93 × 121.23 - Step 4: Simplify right side
381.24x = 69,335.07 - Step 5: Solve for x
x = 69,335.07/381.24 - Step 6: Final answer
x = 181.87
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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.