Finding the Fourth Proportional to 324.30, 486.79 and 202.65
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Solution
The fourth proportional to 324.30, 486.79 and 202.65 is: 304.19
Step by Step Solution
- Step 1: Write the proportion equation
324.30 : 486.79 = 202.65 : x - Step 2: Convert to fraction form
324.30/486.79 = 202.65/x - Step 3: Cross multiply
324.30x = 486.79 × 202.65 - Step 4: Simplify right side
324.30x = 98,647.99 - Step 5: Solve for x
x = 98,647.99/324.30 - Step 6: Final answer
x = 304.19
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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.