Finding the Fourth Proportional to 194.61, 291.87 and 133.95
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Solution
The fourth proportional to 194.61, 291.87 and 133.95 is: 200.89
Step by Step Solution
- Step 1: Write the proportion equation
194.61 : 291.87 = 133.95 : x - Step 2: Convert to fraction form
194.61/291.87 = 133.95/x - Step 3: Cross multiply
194.61x = 291.87 × 133.95 - Step 4: Simplify right side
194.61x = 39,095.99 - Step 5: Solve for x
x = 39,095.99/194.61 - Step 6: Final answer
x = 200.89
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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.