Finding the Fourth Proportional to 442.44, 659.88 and 415.08
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Solution
The fourth proportional to 442.44, 659.88 and 415.08 is: 619.07
Step by Step Solution
- Step 1: Write the proportion equation
442.44 : 659.88 = 415.08 : x - Step 2: Convert to fraction form
442.44/659.88 = 415.08/x - Step 3: Cross multiply
442.44x = 659.88 × 415.08 - Step 4: Simplify right side
442.44x = 273,902.99 - Step 5: Solve for x
x = 273,902.99/442.44 - Step 6: Final answer
x = 619.07
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.