Finding the Fourth Proportional to 317.13, 437.65 and 186.14
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Solution
The fourth proportional to 317.13, 437.65 and 186.14 is: 256.88
Step by Step Solution
- Step 1: Write the proportion equation
317.13 : 437.65 = 186.14 : x - Step 2: Convert to fraction form
317.13/437.65 = 186.14/x - Step 3: Cross multiply
317.13x = 437.65 × 186.14 - Step 4: Simplify right side
317.13x = 81,463.24 - Step 5: Solve for x
x = 81,463.24/317.13 - Step 6: Final answer
x = 256.88
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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.