Finding the Fourth Proportional to 207.66, 286.58 and 119.15
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Solution
The fourth proportional to 207.66, 286.58 and 119.15 is: 164.43
Step by Step Solution
- Step 1: Write the proportion equation
207.66 : 286.58 = 119.15 : x - Step 2: Convert to fraction form
207.66/286.58 = 119.15/x - Step 3: Cross multiply
207.66x = 286.58 × 119.15 - Step 4: Simplify right side
207.66x = 34,146.08 - Step 5: Solve for x
x = 34,146.08/207.66 - Step 6: Final answer
x = 164.43
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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.