Finding the Fourth Proportional to 351.99, 528.21 and 324.18
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Solution
The fourth proportional to 351.99, 528.21 and 324.18 is: 486.48
Step by Step Solution
- Step 1: Write the proportion equation
351.99 : 528.21 = 324.18 : x - Step 2: Convert to fraction form
351.99/528.21 = 324.18/x - Step 3: Cross multiply
351.99x = 528.21 × 324.18 - Step 4: Simplify right side
351.99x = 171,235.12 - Step 5: Solve for x
x = 171,235.12/351.99 - Step 6: Final answer
x = 486.48
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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.