Finding the Fourth Proportional to 171.58, 257.14 and 110.68
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Solution
The fourth proportional to 171.58, 257.14 and 110.68 is: 165.87
Step by Step Solution
- Step 1: Write the proportion equation
171.58 : 257.14 = 110.68 : x - Step 2: Convert to fraction form
171.58/257.14 = 110.68/x - Step 3: Cross multiply
171.58x = 257.14 × 110.68 - Step 4: Simplify right side
171.58x = 28,460.26 - Step 5: Solve for x
x = 28,460.26/171.58 - Step 6: Final answer
x = 165.87
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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.