Finding the Fourth Proportional to 261.18, 360.36 and 161.58
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Solution
The fourth proportional to 261.18, 360.36 and 161.58 is: 222.94
Step by Step Solution
- Step 1: Write the proportion equation
261.18 : 360.36 = 161.58 : x - Step 2: Convert to fraction form
261.18/360.36 = 161.58/x - Step 3: Cross multiply
261.18x = 360.36 × 161.58 - Step 4: Simplify right side
261.18x = 58,226.97 - Step 5: Solve for x
x = 58,226.97/261.18 - Step 6: Final answer
x = 222.94
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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.