Finding the Fourth Proportional to 318.14, 476.91 and 181.26
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Solution
The fourth proportional to 318.14, 476.91 and 181.26 is: 271.72
Step by Step Solution
- Step 1: Write the proportion equation
318.14 : 476.91 = 181.26 : x - Step 2: Convert to fraction form
318.14/476.91 = 181.26/x - Step 3: Cross multiply
318.14x = 476.91 × 181.26 - Step 4: Simplify right side
318.14x = 86,444.71 - Step 5: Solve for x
x = 86,444.71/318.14 - Step 6: Final answer
x = 271.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.