Finding the Fourth Proportional to 207.96, 312.02 and 63.68
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Solution
The fourth proportional to 207.96, 312.02 and 63.68 is: 95.54
Step by Step Solution
- Step 1: Write the proportion equation
207.96 : 312.02 = 63.68 : x - Step 2: Convert to fraction form
207.96/312.02 = 63.68/x - Step 3: Cross multiply
207.96x = 312.02 × 63.68 - Step 4: Simplify right side
207.96x = 19,869.43 - Step 5: Solve for x
x = 19,869.43/207.96 - Step 6: Final answer
x = 95.54
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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.