Finding the Fourth Proportional to 454, 681 and 261.68
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Solution
The fourth proportional to 454, 681 and 261.68 is: 392.52
Step by Step Solution
- Step 1: Write the proportion equation
454 : 681 = 261.68 : x - Step 2: Convert to fraction form
454/681 = 261.68/x - Step 3: Cross multiply
454x = 681 × 261.68 - Step 4: Simplify right side
454x = 178,204.08 - Step 5: Solve for x
x = 178,204.08/454 - Step 6: Final answer
x = 392.52
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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.