Finding the Fourth Proportional to 457.26, 630.99 and 270.69
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Solution
The fourth proportional to 457.26, 630.99 and 270.69 is: 373.54
Step by Step Solution
- Step 1: Write the proportion equation
457.26 : 630.99 = 270.69 : x - Step 2: Convert to fraction form
457.26/630.99 = 270.69/x - Step 3: Cross multiply
457.26x = 630.99 × 270.69 - Step 4: Simplify right side
457.26x = 170,802.68 - Step 5: Solve for x
x = 170,802.68/457.26 - Step 6: Final answer
x = 373.54
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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.