Finding the Fourth Proportional to 194.19, 291.28 and 49.91
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Solution
The fourth proportional to 194.19, 291.28 and 49.91 is: 74.86
Step by Step Solution
- Step 1: Write the proportion equation
194.19 : 291.28 = 49.91 : x - Step 2: Convert to fraction form
194.19/291.28 = 49.91/x - Step 3: Cross multiply
194.19x = 291.28 × 49.91 - Step 4: Simplify right side
194.19x = 14,537.18 - Step 5: Solve for x
x = 14,537.18/194.19 - Step 6: Final answer
x = 74.86
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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.