Finding the Fourth Proportional to 472.60, 652.26 and 286.12
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Solution
The fourth proportional to 472.60, 652.26 and 286.12 is: 394.89
Step by Step Solution
- Step 1: Write the proportion equation
472.60 : 652.26 = 286.12 : x - Step 2: Convert to fraction form
472.60/652.26 = 286.12/x - Step 3: Cross multiply
472.60x = 652.26 × 286.12 - Step 4: Simplify right side
472.60x = 186,624.63 - Step 5: Solve for x
x = 186,624.63/472.60 - Step 6: Final answer
x = 394.89
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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.