Finding the Fourth Proportional to 207.49, 286.35 and 118.99
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Solution
The fourth proportional to 207.49, 286.35 and 118.99 is: 164.21
Step by Step Solution
- Step 1: Write the proportion equation
207.49 : 286.35 = 118.99 : x - Step 2: Convert to fraction form
207.49/286.35 = 118.99/x - Step 3: Cross multiply
207.49x = 286.35 × 118.99 - Step 4: Simplify right side
207.49x = 34,072.79 - Step 5: Solve for x
x = 34,072.79/207.49 - Step 6: Final answer
x = 164.21
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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.