Finding the Fourth Proportional to 207.08, 285.84 and 141.60
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Solution
The fourth proportional to 207.08, 285.84 and 141.60 is: 195.46
Step by Step Solution
- Step 1: Write the proportion equation
207.08 : 285.84 = 141.60 : x - Step 2: Convert to fraction form
207.08/285.84 = 141.60/x - Step 3: Cross multiply
207.08x = 285.84 × 141.60 - Step 4: Simplify right side
207.08x = 40,474.94 - Step 5: Solve for x
x = 40,474.94/207.08 - Step 6: Final answer
x = 195.46
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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.