Finding the Fourth Proportional to 207.55, 309.19 and 201.17
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Solution
The fourth proportional to 207.55, 309.19 and 201.17 is: 299.69
Step by Step Solution
- Step 1: Write the proportion equation
207.55 : 309.19 = 201.17 : x - Step 2: Convert to fraction form
207.55/309.19 = 201.17/x - Step 3: Cross multiply
207.55x = 309.19 × 201.17 - Step 4: Simplify right side
207.55x = 62,199.75 - Step 5: Solve for x
x = 62,199.75/207.55 - Step 6: Final answer
x = 299.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.