Finding the Fourth Proportional to 304.21, 456.36 and 157.75
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Solution
The fourth proportional to 304.21, 456.36 and 157.75 is: 236.65
Step by Step Solution
- Step 1: Write the proportion equation
304.21 : 456.36 = 157.75 : x - Step 2: Convert to fraction form
304.21/456.36 = 157.75/x - Step 3: Cross multiply
304.21x = 456.36 × 157.75 - Step 4: Simplify right side
304.21x = 71,990.79 - Step 5: Solve for x
x = 71,990.79/304.21 - Step 6: Final answer
x = 236.65
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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.