Finding the Fourth Proportional to 157.96, 217.99 and 88.02
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Solution
The fourth proportional to 157.96, 217.99 and 88.02 is: 121.47
Step by Step Solution
- Step 1: Write the proportion equation
157.96 : 217.99 = 88.02 : x - Step 2: Convert to fraction form
157.96/217.99 = 88.02/x - Step 3: Cross multiply
157.96x = 217.99 × 88.02 - Step 4: Simplify right side
157.96x = 19,187.48 - Step 5: Solve for x
x = 19,187.48/157.96 - Step 6: Final answer
x = 121.47
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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.