Finding the Fourth Proportional to 320.18, 480.57 and 173.99
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Solution
The fourth proportional to 320.18, 480.57 and 173.99 is: 261.15
Step by Step Solution
- Step 1: Write the proportion equation
320.18 : 480.57 = 173.99 : x - Step 2: Convert to fraction form
320.18/480.57 = 173.99/x - Step 3: Cross multiply
320.18x = 480.57 × 173.99 - Step 4: Simplify right side
320.18x = 83,614.92 - Step 5: Solve for x
x = 83,614.92/320.18 - Step 6: Final answer
x = 261.15
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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.