Finding the Fourth Proportional to 349.70, 482.58 and 218.63
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Solution
The fourth proportional to 349.70, 482.58 and 218.63 is: 301.70
Step by Step Solution
- Step 1: Write the proportion equation
349.70 : 482.58 = 218.63 : x - Step 2: Convert to fraction form
349.70/482.58 = 218.63/x - Step 3: Cross multiply
349.70x = 482.58 × 218.63 - Step 4: Simplify right side
349.70x = 105,504.05 - Step 5: Solve for x
x = 105,504.05/349.70 - Step 6: Final answer
x = 301.70
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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.