Finding the Fourth Proportional to 349.80, 482.19 and 239.07
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Solution
The fourth proportional to 349.80, 482.19 and 239.07 is: 329.55
Step by Step Solution
- Step 1: Write the proportion equation
349.80 : 482.19 = 239.07 : x - Step 2: Convert to fraction form
349.80/482.19 = 239.07/x - Step 3: Cross multiply
349.80x = 482.19 × 239.07 - Step 4: Simplify right side
349.80x = 115,277.16 - Step 5: Solve for x
x = 115,277.16/349.80 - Step 6: Final answer
x = 329.55
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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.