Finding the Fourth Proportional to 401.70, 602.68 and 218.99
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Solution
The fourth proportional to 401.70, 602.68 and 218.99 is: 328.56
Step by Step Solution
- Step 1: Write the proportion equation
401.70 : 602.68 = 218.99 : x - Step 2: Convert to fraction form
401.70/602.68 = 218.99/x - Step 3: Cross multiply
401.70x = 602.68 × 218.99 - Step 4: Simplify right side
401.70x = 131,982.67 - Step 5: Solve for x
x = 131,982.67/401.70 - Step 6: Final answer
x = 328.56
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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.