Finding the Fourth Proportional to 299.67, 449.57 and 117.15
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Solution
The fourth proportional to 299.67, 449.57 and 117.15 is: 175.75
Step by Step Solution
- Step 1: Write the proportion equation
299.67 : 449.57 = 117.15 : x - Step 2: Convert to fraction form
299.67/449.57 = 117.15/x - Step 3: Cross multiply
299.67x = 449.57 × 117.15 - Step 4: Simplify right side
299.67x = 52,667.13 - Step 5: Solve for x
x = 52,667.13/299.67 - Step 6: Final answer
x = 175.75
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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.