Finding the Fourth Proportional to 439.96, 606.88 and 292.44
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Solution
The fourth proportional to 439.96, 606.88 and 292.44 is: 403.39
Step by Step Solution
- Step 1: Write the proportion equation
439.96 : 606.88 = 292.44 : x - Step 2: Convert to fraction form
439.96/606.88 = 292.44/x - Step 3: Cross multiply
439.96x = 606.88 × 292.44 - Step 4: Simplify right side
439.96x = 177,475.99 - Step 5: Solve for x
x = 177,475.99/439.96 - Step 6: Final answer
x = 403.39
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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.