Finding the Fourth Proportional to 349.44, 482.24 and 202.09
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Solution
The fourth proportional to 349.44, 482.24 and 202.09 is: 278.89
Step by Step Solution
- Step 1: Write the proportion equation
349.44 : 482.24 = 202.09 : x - Step 2: Convert to fraction form
349.44/482.24 = 202.09/x - Step 3: Cross multiply
349.44x = 482.24 × 202.09 - Step 4: Simplify right side
349.44x = 97,455.88 - Step 5: Solve for x
x = 97,455.88/349.44 - Step 6: Final answer
x = 278.89
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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.