Finding the Fourth Proportional to 122.91, 184.36 and 41.70
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Solution
The fourth proportional to 122.91, 184.36 and 41.70 is: 62.55
Step by Step Solution
- Step 1: Write the proportion equation
122.91 : 184.36 = 41.70 : x - Step 2: Convert to fraction form
122.91/184.36 = 41.70/x - Step 3: Cross multiply
122.91x = 184.36 × 41.70 - Step 4: Simplify right side
122.91x = 7,687.81 - Step 5: Solve for x
x = 7,687.81/122.91 - Step 6: Final answer
x = 62.55
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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.