Finding the Fourth Proportional to 207.60, 286.69 and 177.93
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Solution
The fourth proportional to 207.60, 286.69 and 177.93 is: 245.72
Step by Step Solution
- Step 1: Write the proportion equation
207.60 : 286.69 = 177.93 : x - Step 2: Convert to fraction form
207.60/286.69 = 177.93/x - Step 3: Cross multiply
207.60x = 286.69 × 177.93 - Step 4: Simplify right side
207.60x = 51,010.75 - Step 5: Solve for x
x = 51,010.75/207.60 - Step 6: Final answer
x = 245.72
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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.