Finding the Fourth Proportional to 261.44, 392.67 and 247.26
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Solution
The fourth proportional to 261.44, 392.67 and 247.26 is: 371.38
Step by Step Solution
- Step 1: Write the proportion equation
261.44 : 392.67 = 247.26 : x - Step 2: Convert to fraction form
261.44/392.67 = 247.26/x - Step 3: Cross multiply
261.44x = 392.67 × 247.26 - Step 4: Simplify right side
261.44x = 97,093.06 - Step 5: Solve for x
x = 97,093.06/261.44 - Step 6: Final answer
x = 371.38
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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.