Finding the Fourth Proportional to 380.36, 524.99 and 314.75
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Solution
The fourth proportional to 380.36, 524.99 and 314.75 is: 434.43
Step by Step Solution
- Step 1: Write the proportion equation
380.36 : 524.99 = 314.75 : x - Step 2: Convert to fraction form
380.36/524.99 = 314.75/x - Step 3: Cross multiply
380.36x = 524.99 × 314.75 - Step 4: Simplify right side
380.36x = 165,239.03 - Step 5: Solve for x
x = 165,239.03/380.36 - Step 6: Final answer
x = 434.43
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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.