Finding the Fourth Proportional to 317.08, 475.28 and 207.26
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Solution
The fourth proportional to 317.08, 475.28 and 207.26 is: 310.67
Step by Step Solution
- Step 1: Write the proportion equation
317.08 : 475.28 = 207.26 : x - Step 2: Convert to fraction form
317.08/475.28 = 207.26/x - Step 3: Cross multiply
317.08x = 475.28 × 207.26 - Step 4: Simplify right side
317.08x = 98,506.53 - Step 5: Solve for x
x = 98,506.53/317.08 - Step 6: Final answer
x = 310.67
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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.