Finding the Fourth Proportional to 207.97, 312 and 63.70
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Solution
The fourth proportional to 207.97, 312 and 63.70 is: 95.56
Step by Step Solution
- Step 1: Write the proportion equation
207.97 : 312 = 63.70 : x - Step 2: Convert to fraction form
207.97/312 = 63.70/x - Step 3: Cross multiply
207.97x = 312 × 63.70 - Step 4: Simplify right side
207.97x = 19,874.40 - Step 5: Solve for x
x = 19,874.40/207.97 - Step 6: Final answer
x = 95.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.