Finding the Fourth Proportional to 317.75, 477.08 and 202.92
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Solution
The fourth proportional to 317.75, 477.08 and 202.92 is: 304.67
Step by Step Solution
- Step 1: Write the proportion equation
317.75 : 477.08 = 202.92 : x - Step 2: Convert to fraction form
317.75/477.08 = 202.92/x - Step 3: Cross multiply
317.75x = 477.08 × 202.92 - Step 4: Simplify right side
317.75x = 96,808.06 - Step 5: Solve for x
x = 96,808.06/317.75 - Step 6: Final answer
x = 304.67
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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.