Finding the Fourth Proportional to 472.68, 652 and 286.12
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Solution
The fourth proportional to 472.68, 652 and 286.12 is: 394.66
Step by Step Solution
- Step 1: Write the proportion equation
472.68 : 652 = 286.12 : x - Step 2: Convert to fraction form
472.68/652 = 286.12/x - Step 3: Cross multiply
472.68x = 652 × 286.12 - Step 4: Simplify right side
472.68x = 186,550.24 - Step 5: Solve for x
x = 186,550.24/472.68 - Step 6: Final answer
x = 394.66
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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.