Finding the Fourth Proportional to 207.30, 310.44 and 115.74
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Solution
The fourth proportional to 207.30, 310.44 and 115.74 is: 173.33
Step by Step Solution
- Step 1: Write the proportion equation
207.30 : 310.44 = 115.74 : x - Step 2: Convert to fraction form
207.30/310.44 = 115.74/x - Step 3: Cross multiply
207.30x = 310.44 × 115.74 - Step 4: Simplify right side
207.30x = 35,930.33 - Step 5: Solve for x
x = 35,930.33/207.30 - Step 6: Final answer
x = 173.33
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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.