Finding the Fourth Proportional to 349.76, 482.68 and 202.45
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Solution
The fourth proportional to 349.76, 482.68 and 202.45 is: 279.38
Step by Step Solution
- Step 1: Write the proportion equation
349.76 : 482.68 = 202.45 : x - Step 2: Convert to fraction form
349.76/482.68 = 202.45/x - Step 3: Cross multiply
349.76x = 482.68 × 202.45 - Step 4: Simplify right side
349.76x = 97,716.15 - Step 5: Solve for x
x = 97,716.15/349.76 - Step 6: Final answer
x = 279.38
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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.