Finding the Fourth Proportional to 317.43, 475.99 and 155.00
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Solution
The fourth proportional to 317.43, 475.99 and 155.00 is: 232.43
Step by Step Solution
- Step 1: Write the proportion equation
317.43 : 475.99 = 155.00 : x - Step 2: Convert to fraction form
317.43/475.99 = 155.00/x - Step 3: Cross multiply
317.43x = 475.99 × 155.00 - Step 4: Simplify right side
317.43x = 73,779.25 - Step 5: Solve for x
x = 73,779.25/317.43 - Step 6: Final answer
x = 232.43
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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.