Finding the Fourth Proportional to 113.40, 170.10 and 49.26
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Solution
The fourth proportional to 113.40, 170.10 and 49.26 is: 73.89
Step by Step Solution
- Step 1: Write the proportion equation
113.40 : 170.10 = 49.26 : x - Step 2: Convert to fraction form
113.40/170.10 = 49.26/x - Step 3: Cross multiply
113.40x = 170.10 × 49.26 - Step 4: Simplify right side
113.40x = 8,379.13 - Step 5: Solve for x
x = 8,379.13/113.40 - Step 6: Final answer
x = 73.89
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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.