Finding the Fourth Proportional to 317.43, 437.99 and 193.08
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Solution
The fourth proportional to 317.43, 437.99 and 193.08 is: 266.41
Step by Step Solution
- Step 1: Write the proportion equation
317.43 : 437.99 = 193.08 : x - Step 2: Convert to fraction form
317.43/437.99 = 193.08/x - Step 3: Cross multiply
317.43x = 437.99 × 193.08 - Step 4: Simplify right side
317.43x = 84,567.11 - Step 5: Solve for x
x = 84,567.11/317.43 - Step 6: Final answer
x = 266.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.