Finding the Fourth Proportional to 261.68, 392.36 and 88.29
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Solution
The fourth proportional to 261.68, 392.36 and 88.29 is: 132.39
Step by Step Solution
- Step 1: Write the proportion equation
261.68 : 392.36 = 88.29 : x - Step 2: Convert to fraction form
261.68/392.36 = 88.29/x - Step 3: Cross multiply
261.68x = 392.36 × 88.29 - Step 4: Simplify right side
261.68x = 34,642.49 - Step 5: Solve for x
x = 34,642.49/261.68 - Step 6: Final answer
x = 132.39
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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.