Finding the Fourth Proportional to 315.26, 435.06 and 177.26
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Solution
The fourth proportional to 315.26, 435.06 and 177.26 is: 244.62
Step by Step Solution
- Step 1: Write the proportion equation
315.26 : 435.06 = 177.26 : x - Step 2: Convert to fraction form
315.26/435.06 = 177.26/x - Step 3: Cross multiply
315.26x = 435.06 × 177.26 - Step 4: Simplify right side
315.26x = 77,118.74 - Step 5: Solve for x
x = 77,118.74/315.26 - Step 6: Final answer
x = 244.62
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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.