Finding the Fourth Proportional to 318.57, 477.32 and 202.99
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Solution
The fourth proportional to 318.57, 477.32 and 202.99 is: 304.14
Step by Step Solution
- Step 1: Write the proportion equation
318.57 : 477.32 = 202.99 : x - Step 2: Convert to fraction form
318.57/477.32 = 202.99/x - Step 3: Cross multiply
318.57x = 477.32 × 202.99 - Step 4: Simplify right side
318.57x = 96,891.19 - Step 5: Solve for x
x = 96,891.19/318.57 - Step 6: Final answer
x = 304.14
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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.