Finding the Fourth Proportional to 444.18, 665.67 and 320.99
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Solution
The fourth proportional to 444.18, 665.67 and 320.99 is: 481.05
Step by Step Solution
- Step 1: Write the proportion equation
444.18 : 665.67 = 320.99 : x - Step 2: Convert to fraction form
444.18/665.67 = 320.99/x - Step 3: Cross multiply
444.18x = 665.67 × 320.99 - Step 4: Simplify right side
444.18x = 213,671.81 - Step 5: Solve for x
x = 213,671.81/444.18 - Step 6: Final answer
x = 481.05
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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.