Finding the Fourth Proportional to 206.58, 285.12 and 132.99
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Solution
The fourth proportional to 206.58, 285.12 and 132.99 is: 183.55
Step by Step Solution
- Step 1: Write the proportion equation
206.58 : 285.12 = 132.99 : x - Step 2: Convert to fraction form
206.58/285.12 = 132.99/x - Step 3: Cross multiply
206.58x = 285.12 × 132.99 - Step 4: Simplify right side
206.58x = 37,918.11 - Step 5: Solve for x
x = 37,918.11/206.58 - Step 6: Final answer
x = 183.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.