Finding the Fourth Proportional to 331.23, 457.11 and 248.19
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Solution
The fourth proportional to 331.23, 457.11 and 248.19 is: 342.51
Step by Step Solution
- Step 1: Write the proportion equation
331.23 : 457.11 = 248.19 : x - Step 2: Convert to fraction form
331.23/457.11 = 248.19/x - Step 3: Cross multiply
331.23x = 457.11 × 248.19 - Step 4: Simplify right side
331.23x = 113,450.13 - Step 5: Solve for x
x = 113,450.13/331.23 - Step 6: Final answer
x = 342.51
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Double scale
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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.