Finding the Fourth Proportional to 207.01, 310.21 and 191.82
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Solution
The fourth proportional to 207.01, 310.21 and 191.82 is: 287.45
Step by Step Solution
- Step 1: Write the proportion equation
207.01 : 310.21 = 191.82 : x - Step 2: Convert to fraction form
207.01/310.21 = 191.82/x - Step 3: Cross multiply
207.01x = 310.21 × 191.82 - Step 4: Simplify right side
207.01x = 59,506.24 - Step 5: Solve for x
x = 59,506.24/207.01 - Step 6: Final answer
x = 287.45
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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.