Finding the Fourth Proportional to 291.11, 437.21 and 194.99
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Solution
The fourth proportional to 291.11, 437.21 and 194.99 is: 292.85
Step by Step Solution
- Step 1: Write the proportion equation
291.11 : 437.21 = 194.99 : x - Step 2: Convert to fraction form
291.11/437.21 = 194.99/x - Step 3: Cross multiply
291.11x = 437.21 × 194.99 - Step 4: Simplify right side
291.11x = 85,250.60 - Step 5: Solve for x
x = 85,250.60/291.11 - Step 6: Final answer
x = 292.85
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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.