Finding the Fourth Proportional to 221.81, 332.26 and 134.87
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Solution
The fourth proportional to 221.81, 332.26 and 134.87 is: 202.02
Step by Step Solution
- Step 1: Write the proportion equation
221.81 : 332.26 = 134.87 : x - Step 2: Convert to fraction form
221.81/332.26 = 134.87/x - Step 3: Cross multiply
221.81x = 332.26 × 134.87 - Step 4: Simplify right side
221.81x = 44,809.91 - Step 5: Solve for x
x = 44,809.91/221.81 - Step 6: Final answer
x = 202.02
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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.