Finding the Fourth Proportional to 260.30, 392.26 and 217.96
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Solution
The fourth proportional to 260.30, 392.26 and 217.96 is: 328.46
Step by Step Solution
- Step 1: Write the proportion equation
260.30 : 392.26 = 217.96 : x - Step 2: Convert to fraction form
260.30/392.26 = 217.96/x - Step 3: Cross multiply
260.30x = 392.26 × 217.96 - Step 4: Simplify right side
260.30x = 85,496.99 - Step 5: Solve for x
x = 85,496.99/260.30 - Step 6: Final answer
x = 328.46
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.