Finding the Fourth Proportional to 207.60, 286.26 and 142.14
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Solution
The fourth proportional to 207.60, 286.26 and 142.14 is: 196.00
Step by Step Solution
- Step 1: Write the proportion equation
207.60 : 286.26 = 142.14 : x - Step 2: Convert to fraction form
207.60/286.26 = 142.14/x - Step 3: Cross multiply
207.60x = 286.26 × 142.14 - Step 4: Simplify right side
207.60x = 40,689.00 - Step 5: Solve for x
x = 40,689.00/207.60 - Step 6: Final answer
x = 196.00
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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.