Finding the Fourth Proportional to 355.40, 533.18 and 163.08
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Solution
The fourth proportional to 355.40, 533.18 and 163.08 is: 244.66
Step by Step Solution
- Step 1: Write the proportion equation
355.40 : 533.18 = 163.08 : x - Step 2: Convert to fraction form
355.40/533.18 = 163.08/x - Step 3: Cross multiply
355.40x = 533.18 × 163.08 - Step 4: Simplify right side
355.40x = 86,950.99 - Step 5: Solve for x
x = 86,950.99/355.40 - Step 6: Final answer
x = 244.66
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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.