Finding the Fourth Proportional to 478.26, 659.99 and 265.58
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Solution
The fourth proportional to 478.26, 659.99 and 265.58 is: 366.50
Step by Step Solution
- Step 1: Write the proportion equation
478.26 : 659.99 = 265.58 : x - Step 2: Convert to fraction form
478.26/659.99 = 265.58/x - Step 3: Cross multiply
478.26x = 659.99 × 265.58 - Step 4: Simplify right side
478.26x = 175,279.97 - Step 5: Solve for x
x = 175,279.97/478.26 - Step 6: Final answer
x = 366.50
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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.