Finding the Fourth Proportional to 221.53, 332.36 and 130.26
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Solution
The fourth proportional to 221.53, 332.36 and 130.26 is: 195.43
Step by Step Solution
- Step 1: Write the proportion equation
221.53 : 332.36 = 130.26 : x - Step 2: Convert to fraction form
221.53/332.36 = 130.26/x - Step 3: Cross multiply
221.53x = 332.36 × 130.26 - Step 4: Simplify right side
221.53x = 43,293.21 - Step 5: Solve for x
x = 43,293.21/221.53 - Step 6: Final answer
x = 195.43
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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.