Finding the Fourth Proportional to 157.13, 216.79 and 94.97
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Solution
The fourth proportional to 157.13, 216.79 and 94.97 is: 131.02
Step by Step Solution
- Step 1: Write the proportion equation
157.13 : 216.79 = 94.97 : x - Step 2: Convert to fraction form
157.13/216.79 = 94.97/x - Step 3: Cross multiply
157.13x = 216.79 × 94.97 - Step 4: Simplify right side
157.13x = 20,587.22 - Step 5: Solve for x
x = 20,587.22/157.13 - Step 6: Final answer
x = 131.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.