Finding the Fourth Proportional to 207.64, 286.30 and 193.06
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Solution
The fourth proportional to 207.64, 286.30 and 193.06 is: 266.20
Step by Step Solution
- Step 1: Write the proportion equation
207.64 : 286.30 = 193.06 : x - Step 2: Convert to fraction form
207.64/286.30 = 193.06/x - Step 3: Cross multiply
207.64x = 286.30 × 193.06 - Step 4: Simplify right side
207.64x = 55,273.08 - Step 5: Solve for x
x = 55,273.08/207.64 - Step 6: Final answer
x = 266.20
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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.