Finding the Fourth Proportional to 380.19, 524.97 and 310.26
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Solution
The fourth proportional to 380.19, 524.97 and 310.26 is: 428.41
Step by Step Solution
- Step 1: Write the proportion equation
380.19 : 524.97 = 310.26 : x - Step 2: Convert to fraction form
380.19/524.97 = 310.26/x - Step 3: Cross multiply
380.19x = 524.97 × 310.26 - Step 4: Simplify right side
380.19x = 162,877.19 - Step 5: Solve for x
x = 162,877.19/380.19 - Step 6: Final answer
x = 428.41
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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.