Finding the Third Proportional to 70.50 and 103.50
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Solution
The third proportional to 70.50 and 103.50 is: 151.95
Step by Step Solution
- Step 1: Write the proportion equation
70.50 : 103.50 = 103.50 : x - Step 2: Convert to fraction form
70.50/103.50 = 103.50/x - Step 3: Cross multiply
70.50x = 103.50 × 103.50 - Step 4: Simplify right side
70.50x = 10,712.25 - Step 5: Solve for x
x = 10,712.25/70.50 - Step 6: Final answer
x = 151.95
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.