Finding the Fourth Proportional to 261.87, 361.04 and 202.94
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Solution
The fourth proportional to 261.87, 361.04 and 202.94 is: 279.79
Step by Step Solution
- Step 1: Write the proportion equation
261.87 : 361.04 = 202.94 : x - Step 2: Convert to fraction form
261.87/361.04 = 202.94/x - Step 3: Cross multiply
261.87x = 361.04 × 202.94 - Step 4: Simplify right side
261.87x = 73,267.99 - Step 5: Solve for x
x = 73,267.99/261.87 - Step 6: Final answer
x = 279.79
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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.