Finding the Fourth Proportional to 316.11, 474.56 and 201.05
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Solution
The fourth proportional to 316.11, 474.56 and 201.05 is: 301.82
Step by Step Solution
- Step 1: Write the proportion equation
316.11 : 474.56 = 201.05 : x - Step 2: Convert to fraction form
316.11/474.56 = 201.05/x - Step 3: Cross multiply
316.11x = 474.56 × 201.05 - Step 4: Simplify right side
316.11x = 95,406.91 - Step 5: Solve for x
x = 95,406.91/316.11 - Step 6: Final answer
x = 301.82
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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.