Finding the Fourth Proportional to 157.66, 237.70 and 136.18
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Solution
The fourth proportional to 157.66, 237.70 and 136.18 is: 205.32
Step by Step Solution
- Step 1: Write the proportion equation
157.66 : 237.70 = 136.18 : x - Step 2: Convert to fraction form
157.66/237.70 = 136.18/x - Step 3: Cross multiply
157.66x = 237.70 × 136.18 - Step 4: Simplify right side
157.66x = 32,369.99 - Step 5: Solve for x
x = 32,369.99/157.66 - Step 6: Final answer
x = 205.32
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.