Finding the Fourth Proportional to 208.06, 311.99 and 63.74
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Solution
The fourth proportional to 208.06, 311.99 and 63.74 is: 95.58
Step by Step Solution
- Step 1: Write the proportion equation
208.06 : 311.99 = 63.74 : x - Step 2: Convert to fraction form
208.06/311.99 = 63.74/x - Step 3: Cross multiply
208.06x = 311.99 × 63.74 - Step 4: Simplify right side
208.06x = 19,886.24 - Step 5: Solve for x
x = 19,886.24/208.06 - Step 6: Final answer
x = 95.58
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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.