Finding the Fourth Proportional to 221.91, 332.70 and 106.26
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Solution
The fourth proportional to 221.91, 332.70 and 106.26 is: 159.31
Step by Step Solution
- Step 1: Write the proportion equation
221.91 : 332.70 = 106.26 : x - Step 2: Convert to fraction form
221.91/332.70 = 106.26/x - Step 3: Cross multiply
221.91x = 332.70 × 106.26 - Step 4: Simplify right side
221.91x = 35,352.70 - Step 5: Solve for x
x = 35,352.70/221.91 - Step 6: Final answer
x = 159.31
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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.