Finding the Fourth Proportional to 217.24, 299.63 and 147.26
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Solution
The fourth proportional to 217.24, 299.63 and 147.26 is: 203.12
Step by Step Solution
- Step 1: Write the proportion equation
217.24 : 299.63 = 147.26 : x - Step 2: Convert to fraction form
217.24/299.63 = 147.26/x - Step 3: Cross multiply
217.24x = 299.63 × 147.26 - Step 4: Simplify right side
217.24x = 44,124.63 - Step 5: Solve for x
x = 44,124.63/217.24 - Step 6: Final answer
x = 203.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.