Finding the Fourth Proportional to 472.58, 652.19 and 286.08
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Solution
The fourth proportional to 472.58, 652.19 and 286.08 is: 394.81
Step by Step Solution
- Step 1: Write the proportion equation
472.58 : 652.19 = 286.08 : x - Step 2: Convert to fraction form
472.58/652.19 = 286.08/x - Step 3: Cross multiply
472.58x = 652.19 × 286.08 - Step 4: Simplify right side
472.58x = 186,578.52 - Step 5: Solve for x
x = 186,578.52/472.58 - Step 6: Final answer
x = 394.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.