Finding the Fourth Proportional to 324.41, 486.14 and 161.87
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Solution
The fourth proportional to 324.41, 486.14 and 161.87 is: 242.56
Step by Step Solution
- Step 1: Write the proportion equation
324.41 : 486.14 = 161.87 : x - Step 2: Convert to fraction form
324.41/486.14 = 161.87/x - Step 3: Cross multiply
324.41x = 486.14 × 161.87 - Step 4: Simplify right side
324.41x = 78,688.24 - Step 5: Solve for x
x = 78,688.24/324.41 - Step 6: Final answer
x = 242.56
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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.