Finding the Fourth Proportional to 163.99, 245.87 and 109.07
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Solution
The fourth proportional to 163.99, 245.87 and 109.07 is: 163.53
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 245.87 = 109.07 : x - Step 2: Convert to fraction form
163.99/245.87 = 109.07/x - Step 3: Cross multiply
163.99x = 245.87 × 109.07 - Step 4: Simplify right side
163.99x = 26,817.04 - Step 5: Solve for x
x = 26,817.04/163.99 - Step 6: Final answer
x = 163.53
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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.