Finding the Fourth Proportional to 472.70, 652.36 and 276.26
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Solution
The fourth proportional to 472.70, 652.36 and 276.26 is: 381.26
Step by Step Solution
- Step 1: Write the proportion equation
472.70 : 652.36 = 276.26 : x - Step 2: Convert to fraction form
472.70/652.36 = 276.26/x - Step 3: Cross multiply
472.70x = 652.36 × 276.26 - Step 4: Simplify right side
472.70x = 180,220.97 - Step 5: Solve for x
x = 180,220.97/472.70 - Step 6: Final answer
x = 381.26
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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.