Finding the Third Proportional to 136 and 256.50
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Solution
The third proportional to 136 and 256.50 is: 483.77
Step by Step Solution
- Step 1: Write the proportion equation
136 : 256.50 = 256.50 : x - Step 2: Convert to fraction form
136/256.50 = 256.50/x - Step 3: Cross multiply
136x = 256.50 × 256.50 - Step 4: Simplify right side
136x = 65,792.25 - Step 5: Solve for x
x = 65,792.25/136 - Step 6: Final answer
x = 483.77
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Why These Related Problems?
These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.