Finding the Fourth Proportional to 404.30, 557.70 and 273.08
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Solution
The fourth proportional to 404.30, 557.70 and 273.08 is: 376.69
Step by Step Solution
- Step 1: Write the proportion equation
404.30 : 557.70 = 273.08 : x - Step 2: Convert to fraction form
404.30/557.70 = 273.08/x - Step 3: Cross multiply
404.30x = 557.70 × 273.08 - Step 4: Simplify right side
404.30x = 152,296.72 - Step 5: Solve for x
x = 152,296.72/404.30 - Step 6: Final answer
x = 376.69
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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.