Finding the Fourth Proportional to 346.70, 519.79 and 163.88
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Solution
The fourth proportional to 346.70, 519.79 and 163.88 is: 245.70
Step by Step Solution
- Step 1: Write the proportion equation
346.70 : 519.79 = 163.88 : x - Step 2: Convert to fraction form
346.70/519.79 = 163.88/x - Step 3: Cross multiply
346.70x = 519.79 × 163.88 - Step 4: Simplify right side
346.70x = 85,184.42 - Step 5: Solve for x
x = 85,184.42/346.70 - Step 6: Final answer
x = 245.70
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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.