Finding the Fourth Proportional to 164.15, 246.18 and 65.31
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Solution
The fourth proportional to 164.15, 246.18 and 65.31 is: 97.95
Step by Step Solution
- Step 1: Write the proportion equation
164.15 : 246.18 = 65.31 : x - Step 2: Convert to fraction form
164.15/246.18 = 65.31/x - Step 3: Cross multiply
164.15x = 246.18 × 65.31 - Step 4: Simplify right side
164.15x = 16,078.02 - Step 5: Solve for x
x = 16,078.02/164.15 - Step 6: Final answer
x = 97.95
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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.