Finding the Fourth Proportional to 349.67, 482.55 and 202.31
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Solution
The fourth proportional to 349.67, 482.55 and 202.31 is: 279.20
Step by Step Solution
- Step 1: Write the proportion equation
349.67 : 482.55 = 202.31 : x - Step 2: Convert to fraction form
349.67/482.55 = 202.31/x - Step 3: Cross multiply
349.67x = 482.55 × 202.31 - Step 4: Simplify right side
349.67x = 97,627.75 - Step 5: Solve for x
x = 97,627.75/349.67 - Step 6: Final answer
x = 279.20
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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.