Finding the Fourth Proportional to 344.06, 515.42 and 213.44
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Solution
The fourth proportional to 344.06, 515.42 and 213.44 is: 319.74
Step by Step Solution
- Step 1: Write the proportion equation
344.06 : 515.42 = 213.44 : x - Step 2: Convert to fraction form
344.06/515.42 = 213.44/x - Step 3: Cross multiply
344.06x = 515.42 × 213.44 - Step 4: Simplify right side
344.06x = 110,011.24 - Step 5: Solve for x
x = 110,011.24/344.06 - Step 6: Final answer
x = 319.74
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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.