Finding the Third Proportional to 153 and 158
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Solution
The third proportional to 153 and 158 is: 163.16
Step by Step Solution
- Step 1: Write the proportion equation
153 : 158 = 158 : x - Step 2: Convert to fraction form
153/158 = 158/x - Step 3: Cross multiply
153x = 158 × 158 - Step 4: Simplify right side
153x = 24,964 - Step 5: Solve for x
x = 24,964/153 - Step 6: Final answer
x = 163.16
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These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.