Finding the Fourth Proportional to 317.44, 438.08 and 193.12
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Solution
The fourth proportional to 317.44, 438.08 and 193.12 is: 266.51
Step by Step Solution
- Step 1: Write the proportion equation
317.44 : 438.08 = 193.12 : x - Step 2: Convert to fraction form
317.44/438.08 = 193.12/x - Step 3: Cross multiply
317.44x = 438.08 × 193.12 - Step 4: Simplify right side
317.44x = 84,602.01 - Step 5: Solve for x
x = 84,602.01/317.44 - Step 6: Final answer
x = 266.51
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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.