Finding the Fourth Proportional to 313.21, 432.21 and 182.23
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Solution
The fourth proportional to 313.21, 432.21 and 182.23 is: 251.47
Step by Step Solution
- Step 1: Write the proportion equation
313.21 : 432.21 = 182.23 : x - Step 2: Convert to fraction form
313.21/432.21 = 182.23/x - Step 3: Cross multiply
313.21x = 432.21 × 182.23 - Step 4: Simplify right side
313.21x = 78,761.63 - Step 5: Solve for x
x = 78,761.63/313.21 - Step 6: Final answer
x = 251.47
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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.