Finding the Fourth Proportional to 365.19, 547.84 and 130.91
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Solution
The fourth proportional to 365.19, 547.84 and 130.91 is: 196.38
Step by Step Solution
- Step 1: Write the proportion equation
365.19 : 547.84 = 130.91 : x - Step 2: Convert to fraction form
365.19/547.84 = 130.91/x - Step 3: Cross multiply
365.19x = 547.84 × 130.91 - Step 4: Simplify right side
365.19x = 71,717.73 - Step 5: Solve for x
x = 71,717.73/365.19 - Step 6: Final answer
x = 196.38
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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.