Finding the Fourth Proportional to 122.64, 183.99 and 35.98
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Solution
The fourth proportional to 122.64, 183.99 and 35.98 is: 53.98
Step by Step Solution
- Step 1: Write the proportion equation
122.64 : 183.99 = 35.98 : x - Step 2: Convert to fraction form
122.64/183.99 = 35.98/x - Step 3: Cross multiply
122.64x = 183.99 × 35.98 - Step 4: Simplify right side
122.64x = 6,619.96 - Step 5: Solve for x
x = 6,619.96/122.64 - Step 6: Final answer
x = 53.98
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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.