Finding the Fourth Proportional to 207.30, 310.93 and 126.12
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Solution
The fourth proportional to 207.30, 310.93 and 126.12 is: 189.17
Step by Step Solution
- Step 1: Write the proportion equation
207.30 : 310.93 = 126.12 : x - Step 2: Convert to fraction form
207.30/310.93 = 126.12/x - Step 3: Cross multiply
207.30x = 310.93 × 126.12 - Step 4: Simplify right side
207.30x = 39,214.49 - Step 5: Solve for x
x = 39,214.49/207.30 - Step 6: Final answer
x = 189.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.