Finding the Fourth Proportional to 157.13, 236.63 and 137.08
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Solution
The fourth proportional to 157.13, 236.63 and 137.08 is: 206.44
Step by Step Solution
- Step 1: Write the proportion equation
157.13 : 236.63 = 137.08 : x - Step 2: Convert to fraction form
157.13/236.63 = 137.08/x - Step 3: Cross multiply
157.13x = 236.63 × 137.08 - Step 4: Simplify right side
157.13x = 32,437.24 - Step 5: Solve for x
x = 32,437.24/157.13 - Step 6: Final answer
x = 206.44
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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.