Finding the Fourth Proportional to 349.69, 482.57 and 202.31
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Solution
The fourth proportional to 349.69, 482.57 and 202.31 is: 279.19
Step by Step Solution
- Step 1: Write the proportion equation
349.69 : 482.57 = 202.31 : x - Step 2: Convert to fraction form
349.69/482.57 = 202.31/x - Step 3: Cross multiply
349.69x = 482.57 × 202.31 - Step 4: Simplify right side
349.69x = 97,628.74 - Step 5: Solve for x
x = 97,628.74/349.69 - Step 6: Final answer
x = 279.19
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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.