Finding the Fourth Proportional to 386.73, 579.06 and 294.99
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Solution
The fourth proportional to 386.73, 579.06 and 294.99 is: 441.70
Step by Step Solution
- Step 1: Write the proportion equation
386.73 : 579.06 = 294.99 : x - Step 2: Convert to fraction form
386.73/579.06 = 294.99/x - Step 3: Cross multiply
386.73x = 579.06 × 294.99 - Step 4: Simplify right side
386.73x = 170,816.91 - Step 5: Solve for x
x = 170,816.91/386.73 - Step 6: Final answer
x = 441.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.