Finding the Fourth Proportional to 207.24, 310.94 and 79.08
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Solution
The fourth proportional to 207.24, 310.94 and 79.08 is: 118.65
Step by Step Solution
- Step 1: Write the proportion equation
207.24 : 310.94 = 79.08 : x - Step 2: Convert to fraction form
207.24/310.94 = 79.08/x - Step 3: Cross multiply
207.24x = 310.94 × 79.08 - Step 4: Simplify right side
207.24x = 24,589.14 - Step 5: Solve for x
x = 24,589.14/207.24 - Step 6: Final answer
x = 118.65
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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.