Finding the Fourth Proportional to 349.70, 482.49 and 202.28
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Solution
The fourth proportional to 349.70, 482.49 and 202.28 is: 279.09
Step by Step Solution
- Step 1: Write the proportion equation
349.70 : 482.49 = 202.28 : x - Step 2: Convert to fraction form
349.70/482.49 = 202.28/x - Step 3: Cross multiply
349.70x = 482.49 × 202.28 - Step 4: Simplify right side
349.70x = 97,595.66 - Step 5: Solve for x
x = 97,595.66/349.70 - Step 6: Final answer
x = 279.09
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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.