Finding the Fourth Proportional to 160.71, 240.68 and 115.08
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Solution
The fourth proportional to 160.71, 240.68 and 115.08 is: 172.34
Step by Step Solution
- Step 1: Write the proportion equation
160.71 : 240.68 = 115.08 : x - Step 2: Convert to fraction form
160.71/240.68 = 115.08/x - Step 3: Cross multiply
160.71x = 240.68 × 115.08 - Step 4: Simplify right side
160.71x = 27,695.68 - Step 5: Solve for x
x = 27,695.68/160.71 - Step 6: Final answer
x = 172.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.