Finding the Fourth Proportional to 420.19, 630.11 and 246.92
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Solution
The fourth proportional to 420.19, 630.11 and 246.92 is: 370.27
Step by Step Solution
- Step 1: Write the proportion equation
420.19 : 630.11 = 246.92 : x - Step 2: Convert to fraction form
420.19/630.11 = 246.92/x - Step 3: Cross multiply
420.19x = 630.11 × 246.92 - Step 4: Simplify right side
420.19x = 155,584.23 - Step 5: Solve for x
x = 155,584.23/420.19 - Step 6: Final answer
x = 370.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.