Finding the Fourth Proportional to 434.92, 652.19 and 126.70
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Solution
The fourth proportional to 434.92, 652.19 and 126.70 is: 189.99
Step by Step Solution
- Step 1: Write the proportion equation
434.92 : 652.19 = 126.70 : x - Step 2: Convert to fraction form
434.92/652.19 = 126.70/x - Step 3: Cross multiply
434.92x = 652.19 × 126.70 - Step 4: Simplify right side
434.92x = 82,630.21 - Step 5: Solve for x
x = 82,630.21/434.92 - Step 6: Final answer
x = 189.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.