Finding the Fourth Proportional to 324.70, 487.08 and 108.29
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Solution
The fourth proportional to 324.70, 487.08 and 108.29 is: 162.45
Step by Step Solution
- Step 1: Write the proportion equation
324.70 : 487.08 = 108.29 : x - Step 2: Convert to fraction form
324.70/487.08 = 108.29/x - Step 3: Cross multiply
324.70x = 487.08 × 108.29 - Step 4: Simplify right side
324.70x = 52,747.11 - Step 5: Solve for x
x = 52,747.11/324.70 - Step 6: Final answer
x = 162.45
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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.