Finding the Fourth Proportional to 311.21, 466.07 and 202.40
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Solution
The fourth proportional to 311.21, 466.07 and 202.40 is: 303.11
Step by Step Solution
- Step 1: Write the proportion equation
311.21 : 466.07 = 202.40 : x - Step 2: Convert to fraction form
311.21/466.07 = 202.40/x - Step 3: Cross multiply
311.21x = 466.07 × 202.40 - Step 4: Simplify right side
311.21x = 94,329.23 - Step 5: Solve for x
x = 94,329.23/311.21 - Step 6: Final answer
x = 303.11
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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.