Finding the Fourth Proportional to 157.11, 235.94 and 149.55
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Solution
The fourth proportional to 157.11, 235.94 and 149.55 is: 224.58
Step by Step Solution
- Step 1: Write the proportion equation
157.11 : 235.94 = 149.55 : x - Step 2: Convert to fraction form
157.11/235.94 = 149.55/x - Step 3: Cross multiply
157.11x = 235.94 × 149.55 - Step 4: Simplify right side
157.11x = 35,284.08 - Step 5: Solve for x
x = 35,284.08/157.11 - Step 6: Final answer
x = 224.58
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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.