Finding the Fourth Proportional to 393.61, 590.44 and 177.19
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Solution
The fourth proportional to 393.61, 590.44 and 177.19 is: 265.79
Step by Step Solution
- Step 1: Write the proportion equation
393.61 : 590.44 = 177.19 : x - Step 2: Convert to fraction form
393.61/590.44 = 177.19/x - Step 3: Cross multiply
393.61x = 590.44 × 177.19 - Step 4: Simplify right side
393.61x = 104,618.48 - Step 5: Solve for x
x = 104,618.48/393.61 - Step 6: Final answer
x = 265.79
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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.