Finding the Fourth Proportional to 316.72, 474.99 and 200.99
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Solution
The fourth proportional to 316.72, 474.99 and 200.99 is: 301.43
Step by Step Solution
- Step 1: Write the proportion equation
316.72 : 474.99 = 200.99 : x - Step 2: Convert to fraction form
316.72/474.99 = 200.99/x - Step 3: Cross multiply
316.72x = 474.99 × 200.99 - Step 4: Simplify right side
316.72x = 95,468.24 - Step 5: Solve for x
x = 95,468.24/316.72 - Step 6: Final answer
x = 301.43
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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.