Finding the Fourth Proportional to 356.14, 534.26 and 161.20
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Solution
The fourth proportional to 356.14, 534.26 and 161.20 is: 241.82
Step by Step Solution
- Step 1: Write the proportion equation
356.14 : 534.26 = 161.20 : x - Step 2: Convert to fraction form
356.14/534.26 = 161.20/x - Step 3: Cross multiply
356.14x = 534.26 × 161.20 - Step 4: Simplify right side
356.14x = 86,122.71 - Step 5: Solve for x
x = 86,122.71/356.14 - Step 6: Final answer
x = 241.82
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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.