Finding the Fourth Proportional to 317.19, 437.91 and 192.90
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Solution
The fourth proportional to 317.19, 437.91 and 192.90 is: 266.32
Step by Step Solution
- Step 1: Write the proportion equation
317.19 : 437.91 = 192.90 : x - Step 2: Convert to fraction form
317.19/437.91 = 192.90/x - Step 3: Cross multiply
317.19x = 437.91 × 192.90 - Step 4: Simplify right side
317.19x = 84,472.84 - Step 5: Solve for x
x = 84,472.84/317.19 - Step 6: Final answer
x = 266.32
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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.