Finding the Fourth Proportional to 415.06, 572.74 and 249.19
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Solution
The fourth proportional to 415.06, 572.74 and 249.19 is: 343.86
Step by Step Solution
- Step 1: Write the proportion equation
415.06 : 572.74 = 249.19 : x - Step 2: Convert to fraction form
415.06/572.74 = 249.19/x - Step 3: Cross multiply
415.06x = 572.74 × 249.19 - Step 4: Simplify right side
415.06x = 142,721.08 - Step 5: Solve for x
x = 142,721.08/415.06 - Step 6: Final answer
x = 343.86
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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.