Finding the Fourth Proportional to 508.97, 702.36 and 287.99
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Solution
The fourth proportional to 508.97, 702.36 and 287.99 is: 397.42
Step by Step Solution
- Step 1: Write the proportion equation
508.97 : 702.36 = 287.99 : x - Step 2: Convert to fraction form
508.97/702.36 = 287.99/x - Step 3: Cross multiply
508.97x = 702.36 × 287.99 - Step 4: Simplify right side
508.97x = 202,272.66 - Step 5: Solve for x
x = 202,272.66/508.97 - Step 6: Final answer
x = 397.42
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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.