Finding the Fourth Proportional to 324.18, 486.28 and 107.70
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Solution
The fourth proportional to 324.18, 486.28 and 107.70 is: 161.55
Step by Step Solution
- Step 1: Write the proportion equation
324.18 : 486.28 = 107.70 : x - Step 2: Convert to fraction form
324.18/486.28 = 107.70/x - Step 3: Cross multiply
324.18x = 486.28 × 107.70 - Step 4: Simplify right side
324.18x = 52,372.36 - Step 5: Solve for x
x = 52,372.36/324.18 - Step 6: Final answer
x = 161.55
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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.