Finding the Fourth Proportional to 160.31, 240.42 and 68.99
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Solution
The fourth proportional to 160.31, 240.42 and 68.99 is: 103.46
Step by Step Solution
- Step 1: Write the proportion equation
160.31 : 240.42 = 68.99 : x - Step 2: Convert to fraction form
160.31/240.42 = 68.99/x - Step 3: Cross multiply
160.31x = 240.42 × 68.99 - Step 4: Simplify right side
160.31x = 16,585.24 - Step 5: Solve for x
x = 16,585.24/160.31 - Step 6: Final answer
x = 103.46
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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.