Finding the Fourth Proportional to 330.24, 456.48 and 252.96
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Solution
The fourth proportional to 330.24, 456.48 and 252.96 is: 349.66
Step by Step Solution
- Step 1: Write the proportion equation
330.24 : 456.48 = 252.96 : x - Step 2: Convert to fraction form
330.24/456.48 = 252.96/x - Step 3: Cross multiply
330.24x = 456.48 × 252.96 - Step 4: Simplify right side
330.24x = 115,471.18 - Step 5: Solve for x
x = 115,471.18/330.24 - Step 6: Final answer
x = 349.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.