Finding the Fourth Proportional to 116.34, 174.56 and 51.31
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Solution
The fourth proportional to 116.34, 174.56 and 51.31 is: 76.99
Step by Step Solution
- Step 1: Write the proportion equation
116.34 : 174.56 = 51.31 : x - Step 2: Convert to fraction form
116.34/174.56 = 51.31/x - Step 3: Cross multiply
116.34x = 174.56 × 51.31 - Step 4: Simplify right side
116.34x = 8,957.02 - Step 5: Solve for x
x = 8,957.02/116.34 - Step 6: Final answer
x = 76.99
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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.