Finding the Fourth Proportional to 163.84, 245.76 and 135.28
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Solution
The fourth proportional to 163.84, 245.76 and 135.28 is: 202.92
Step by Step Solution
- Step 1: Write the proportion equation
163.84 : 245.76 = 135.28 : x - Step 2: Convert to fraction form
163.84/245.76 = 135.28/x - Step 3: Cross multiply
163.84x = 245.76 × 135.28 - Step 4: Simplify right side
163.84x = 33,246.41 - Step 5: Solve for x
x = 33,246.41/163.84 - Step 6: Final answer
x = 202.92
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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.