Finding the Fourth Proportional to 199.33, 299.07 and 91.14
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Solution
The fourth proportional to 199.33, 299.07 and 91.14 is: 136.74
Step by Step Solution
- Step 1: Write the proportion equation
199.33 : 299.07 = 91.14 : x - Step 2: Convert to fraction form
199.33/299.07 = 91.14/x - Step 3: Cross multiply
199.33x = 299.07 × 91.14 - Step 4: Simplify right side
199.33x = 27,257.24 - Step 5: Solve for x
x = 27,257.24/199.33 - Step 6: Final answer
x = 136.74
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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.