Finding the Fourth Proportional to 132.44, 198.57 and 70.70
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Solution
The fourth proportional to 132.44, 198.57 and 70.70 is: 106.00
Step by Step Solution
- Step 1: Write the proportion equation
132.44 : 198.57 = 70.70 : x - Step 2: Convert to fraction form
132.44/198.57 = 70.70/x - Step 3: Cross multiply
132.44x = 198.57 × 70.70 - Step 4: Simplify right side
132.44x = 14,038.55 - Step 5: Solve for x
x = 14,038.55/132.44 - Step 6: Final answer
x = 106.00
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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.