Finding the Fourth Proportional to 349.98, 482.99 and 283.74
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Solution
The fourth proportional to 349.98, 482.99 and 283.74 is: 391.57
Step by Step Solution
- Step 1: Write the proportion equation
349.98 : 482.99 = 283.74 : x - Step 2: Convert to fraction form
349.98/482.99 = 283.74/x - Step 3: Cross multiply
349.98x = 482.99 × 283.74 - Step 4: Simplify right side
349.98x = 137,042.16 - Step 5: Solve for x
x = 137,042.16/349.98 - Step 6: Final answer
x = 391.57
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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.