Finding the Third Proportional to 138 and 235.50
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Solution
The third proportional to 138 and 235.50 is: 401.89
Step by Step Solution
- Step 1: Write the proportion equation
138 : 235.50 = 235.50 : x - Step 2: Convert to fraction form
138/235.50 = 235.50/x - Step 3: Cross multiply
138x = 235.50 × 235.50 - Step 4: Simplify right side
138x = 55,460.25 - Step 5: Solve for x
x = 55,460.25/138 - Step 6: Final answer
x = 401.89
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These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.