Finding the Fourth Proportional to 229.11, 342.93 and 163.90
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Solution
The fourth proportional to 229.11, 342.93 and 163.90 is: 245.32
Step by Step Solution
- Step 1: Write the proportion equation
229.11 : 342.93 = 163.90 : x - Step 2: Convert to fraction form
229.11/342.93 = 163.90/x - Step 3: Cross multiply
229.11x = 342.93 × 163.90 - Step 4: Simplify right side
229.11x = 56,206.23 - Step 5: Solve for x
x = 56,206.23/229.11 - Step 6: Final answer
x = 245.32
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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.