Finding the Fourth Proportional to 317.35, 437.79 and 193.02
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Solution
The fourth proportional to 317.35, 437.79 and 193.02 is: 266.27
Step by Step Solution
- Step 1: Write the proportion equation
317.35 : 437.79 = 193.02 : x - Step 2: Convert to fraction form
317.35/437.79 = 193.02/x - Step 3: Cross multiply
317.35x = 437.79 × 193.02 - Step 4: Simplify right side
317.35x = 84,502.23 - Step 5: Solve for x
x = 84,502.23/317.35 - Step 6: Final answer
x = 266.27
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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.